In the face of climate change, each of us holds the power to make a difference. With rising global temperatures, melting ice caps, and extreme weather events becoming the new normal, the need for action has never been more urgent. At the heart of the solution are two concepts that can significantly alter the course of our environmental impact: “Carbon Footprint” and “Carbon Credits.”
A Carbon footprint is essentially the shadow our activities cast on the planet, measured in the amount of greenhouse gasses said activity produced. Our carbon footprint takes a comprehensive of our activities that spans everything from the electricity we use, and cars we drive, to the products we purchase. Reducing this footprint is not just beneficial—it’s essential for our survival and the health of our planet.
Carbon credits are related to carbon footprints, insofar as they’re a methodology designed to incentivize the reduction of greenhouse gas emissions. In other words carbon credits are a system meant to help us reduce our carbon footprint.
By understanding and utilizing carbon credits, businesses and individuals can offset their environmental impact by investing in sustainable projects around the globe. Here’s how they pave the way for a greener future:
- Offset emissions: By purchasing carbon credits, one can balance out their carbon footprint, contributing to global efforts to combat climate change.
- Drive sustainability: Carbon credits fund projects like renewable energy, reforestation, and energy efficiency, promoting a shift towards a sustainable economy.
Understanding Carbon Footprints
As mentioned earlier, our carbon footprint is the total amount of greenhouse gasses we release into the atmosphere through our actions and lifestyle choices. Everything from the cars we drive, the energy that powers our home, to the food we eat contributes to our carbon footprint.
Reducing our carbon footprints is crucial because our current collective carbon footprint is pushing our planet to its limits, and will have catastrophic consequences for our species and life on earth as we know it. Recently we dedicated an entire post to listing how SMEs can do more to become net zero and be more environmentally responsible, but a quick recap may be in order:
Reducing our individual and collective footprints are key to slowing down climate change due to, and hold additional benefits. Here are a few simple actions to start reducing your carbon footprint today:
- Travel smart: Opt for public transportation, carpooling, biking, or walking whenever possible.
- Energy efficiency: Upgrade to energy-efficient appliances and light bulbs.
- Mind your diet: Eat more plant-based meals and reduce food waste.
- Conserve water: Fix leaks and reduce water waste in your home.
Understanding and acting to reduce your carbon footprint individually is the first step toward a more sustainable lifestyle, but this alone will not be enough to combat climate change. We need a system to support collaborative and business driven activities. It’s here that carbon credits become increasingly important – By offering a practical way for organizations to balance out emissions they can’t yet eliminate.
The synergy between reducing our carbon footprint and utilizing carbon credits to account for emissions we can’t eliminate, is pivotal in our journey toward environmental stewardship.
Carbon Credits – Unlocking Sustainability
Carbon credits are a groundbreaking mechanism designed to reduce global greenhouse gas emissions, acting as a bridge to a more sustainable future. By purchasing carbon credits, individuals and businesses can offset their unavoidable carbon footprint, contributing to environmental preservation and sustainability projects worldwide.
Why Carbon Credits Matter
Carbon credit are at the forefront of the battle against climate change, serving a key role in encouraging both companies and individuals to cut down their carbon emissions through financial incentives. These incentives not only make it more appealing to invest in eco-friendly practices but also bring crucial funding to environmental projects that might not have seen the light of day without this support. Moreover, by acting as a universal carbon currency, carbon credits foster a spirit of global cooperation, uniting countries and communities in a shared mission to reduce emissions worldwide. This collective effort is essential as we work towards a more sustainable future, demonstrating the power and potential of carbon credits in driving meaningful environmental progress.
How Do Carbon Credits Work?
In previous blogs we’ve covered how a carbon credit represents the right to emit a certain amount of carbon dioxide or other greenhouse gasses. One credit equals one ton of carbon dioxide. These credits are generated by projects that reduce, avoid, or remove greenhouse gas emissions from the atmosphere, such as:
- Renewable energy projects (wind, solar, hydro)
- Reforestation and forest conservation
- Energy efficiency improvements
Understanding and participating in the carbon credit system, empowers us to take meaningful steps towards a sustainable future. Utilizing this tool responsibly can help us achieve balance and sustainability for our planet. Engaging with carbon credits puts us in an active role in reducing emissions, both as individuals, and as businesses. Recognizing and participating in the carbon credit economy is the mainstream opportunity for businesses to become part of broader solutions for climate change. It allows offsetting carbon footprints and directly contributing to the fight against global warming. Moreover, involvement supports innovation by funding projects dedicated to creating a more sustainable and cleaner world. Purchasing carbon credits offers companies a practical step towards making a real difference, and complements efforts to shrink carbon footprints.
Carbon Credits in Action
Carbon credits have long past moved beyond being a theoretical concept and are making a tangible impact on our planet right now. Carbon credit projects worldwide are funding initiatives that significantly reduce emissions and promote sustainability already. Our own projects are examples of such successes in a variety of fields:
Renewable energy
Renewable energy projects involve the generation of electricity from renewable sources such as solar, wind, hydro, or geothermal power. These projects help reduce greenhouse gas emissions by displacing fossil fuel-based power generation. Renewable energy projects such as wind farms generate carbon credits based on the amount of greenhouse gas emissions they displace compared to conventional fossil fuel-based power generation. These credits can then be sold on the carbon market, providing an additional source of revenue for the project and making it even more financially viable.
Energy efficiency
Energy efficiency projects aim to reduce energy consumption and improve energy efficiency in buildings, industries, and transportation. By implementing energy-saving measures such as upgrading insulation, installing efficient lighting systems, or optimizing industrial processes, businesses can help reduce greenhouse gas emissions associated with energy use, reduce their carbon footprints, and earn carbon credits. This carbon credit income can offset some of the required upfront investment, while longer term operational cost savings provide the justification for the rest.
Afforestation
Trees act as carbon sinks, sequestering carbon dioxide through photosynthesis. Afforestation and reforestation projects help offset emissions and contribute to climate change mitigation because trees trap greenhouse gasses that would otherwise be free in the atmosphere. This is the logic through which creating new forests or restoring degraded ones are activities that are also eligible for earning carbon credits.
Methane capture
Methane is a potent greenhouse gas with a much higher warming potential than carbon dioxide. Methane gas is usually emitted during the production and transport of coal, oil, and natural gas. By capturing methane emissions from sources such as landfills or livestock operations and using it as a fuel or converting it into other products, methane capture and utilization projects help reduce greenhouse gas emissions and promote sustainability goals, and are therefore eligible for earning carbon credits. With these projects in mind, we’ll understand why investing in carbon credits is not just good for the environment but can also be beneficial for us.
The Ripple Effect
The impact of carbon credit supported projects extends far beyond reducing carbon emissions and is repeatedly proven to offer downstream benefits to the society, the economy, and the environment – These projects often lead to the creation of local jobs in green industries, providing communities with new employment opportunities. Additionally, initiatives such as clean cookstove projects significantly reduce air pollution, which in turn improves the health of those communities. Furthermore, reforestation and conservation efforts play a crucial role in protecting endangered species and their natural habitats, preserving biodiversity. This multifaceted impact underscores the value of carbon credit projects in fostering a healthier, more sustainable, and economically vibrant world.
Investing in carbon credits as an individual or a company is a direct contribution to these impactful projects – By offsetting your carbon footprint through carbon credits, you support a cycle of improvement that extends far beyond just carbon reduction. It’s a tangible way to take responsibility for your environmental impact and contribute to a positive change in the world.
Carbon Credits Foster Sustainable Growth
Now that we’ve established how carbon credits are both a tool for offsetting emissions and a catalyst for sustainable growth, it’s easy to see how funding carbon credits stimulate sustainable practices across sectors:
- Renewable Energy Expansion – Carbon credits finance the development of renewable energy sources, reducing reliance on fossil fuels and promoting cleaner air.
- Innovation in Green Technology – Investments in carbon credits fuel research and development in green technologies, paving the way for breakthroughs in sustainability.
- Sustainable Agriculture – Carbon credit projects support sustainable farming practices that improve soil health, conserve water, and reduce greenhouse gas emissions.
The carbon credit system not only addresses environmental issues but also offers economic benefits. By participating in projects funded by carbon credits, we’re not just tackling climate change; we’re also sparking significant economic opportunities. These projects often demand skilled labor, leading to the creation of new job opportunities within the burgeoning green industries. Moreover, by encouraging the adoption of low-carbon technologies, carbon credits are unlocking new markets and revenue streams for forward-thinking businesses, particularly those pioneering in sustainability.
These incentives are drawing global investments into sustainable initiatives, with a marked impact in developing countries where such financial injections can lead to transformative changes. Through our collective engagement in the carbon credit market, we’re contributing to the fight against climate change, supporting environmentally responsible economic development, and steering the global economy towards a low-carbon future. This commitment to carbon credits transcends mere environmental stewardship; it signifies a proactive investment in crafting a sustainable and thriving future for our planet.
Beyond Emission Reductions
Now that we’ve established some of the peripheral benefits carbon credits provide beyond mere accountability, let’s take a deeper look at the environmental conservation, social development, and economic benefits carbon credits are already offering communities worldwide:
Environmental Conservation
Carbon credit projects play a crucial role in preserving and restoring vital habitats, protecting endangered species, and maintaining biodiversity through natural habitat conservation. They also support forest restoration efforts, like reforestation and afforestation, which capture carbon and enhance soil health and water cycles, contributing significantly to environmental sustainability.
Social Advancements
Carbon credits have a significant impact on communities, not only improving public health by enhancing air quality through projects that reduce emissions but also funding education initiatives. This support gives communities valuable tools for sustainable development, showcasing the profound benefits of carbon credits beyond just environmental preservation.
Economic Benefits
Carbon credit initiatives drive sustainable growth by providing training and employment, creating sustainable livelihoods for local communities. These projects often lead to improved infrastructure, such as better roads and clean water supplies, demonstrating the economic benefits and upliftment they bring to areas where they are implemented.
A Holistic Approach to Sustainability
Investing in carbon credits lets everyone contribute to a healthier planet, stronger communities, and a sustainable economy. These credits support projects that reduce emissions and also improve people’s lives by providing better access to essential services and enhancing livelihoods. They ensure that caring for the environment is a key part of our economic growth. This approach shows the importance of carbon credits in creating a future where the planet’s health, social fairness, and economic well-being are all connected.
The Future of Carbon Credits
As we look towards the future, carbon credits stand out as a pivotal element in the global strategy against climate change. Their role in reducing emissions, supporting sustainable projects, and driving economic growth underscores their potential to shape a sustainable future for all.
Evolving Markets and Technologies
Investing in carbon credits helps everyone contribute to a healthier planet, stronger communities, and a sustainable economy. These credits support projects that reduce emissions and also improve people’s lives by providing better access to essential services and enhancing livelihoods. They ensure that caring for the environment is a key part of our economic growth. This approach shows the importance of carbon credits in creating a future where the planet’s health, social fairness, and economic well-being are all connected.
Challenges and Opportunities
The road ahead for carbon credits is filled with challenges that also bring opportunities for growth and betterment. Developing universal standards will help ensure that carbon credits are both effective and reliable. By making carbon credits more accessible to small businesses and individuals, we can make the fight against climate change more inclusive. Furthermore, integrating carbon credits into wider sustainability strategies will enhance their overall impact, pushing us closer to our environmental goals.
The future of carbon credits is a reflection of our collective commitment to a sustainable planet. Through informed action, investment, and advocacy, we can harness the power of carbon credits to drive significant, positive change in the world, ensuring a greener, more sustainable tomorrow for generations to come.
Image credit:
Photo by Marcin Jozwiak on Unsplash
A few months ago I went to a climate change forum at the Center for Brooklyn History. The panel I attended, “Confronting Climate Change: Understanding Deniers,” featured the prominent climate activist, Bill McKibben.
Bill McKibben. Courtesy https://billmckibben.com/.
I was curious to hear McKibben’s take on climate change deniers. I don’t regard the true deniers as a big problem – they’re only 11-15% of our country, according to most polls. Rather, I wondered if McKibben would label as “climate deniers” people who agree that climate change is a significant problem but disagree with his framing and his proposed solutions. I have worked for decades on energy and climate matters as an energy lawyer. Now, more than ever, I believe that to address climate change we need to build a big tent.
In the Q&A I tested where McKibben is on this by asking if he would label as a climate denier someone who subscribes to the main tenets of climate change science yet holds that natural gas has a role to play as a bridge fuel. (Our exchange starts at 1:12:45 of the video.)
This could have been a chance for McKibben to make clear that such a view isn’t climate denialism, even if he feels it’s misguided. But he punted, saying “I don’t care whether they’re deniers or not.” For good measure, he threw in his long-standing refrain that swapping coal for natural gas makes climate change worse, despite coal’s far higher carbon content per unit of energy.
674-MW methane-powered generating station, Salem, MA.
As you can hear in the recording, McKibben’s claim that gas is worse than coal draws on the work of Cornell scientist Robert Howarth. Yet McKibben didn’t mention that Howarth’s work is controversial and disputed by many scientists. The crux of the dispute is whether methane’s impact on warming should be measured with a 20-year or 100-year time frame.
Methane is a relatively short-lived greenhouse gas, with a lifetime of around 10 years, versus the 100-year life applicable to carbon dioxide. But each ton of methane is far more potent while in the atmosphere, trapping roughly 100 times as much heat as a ton of CO2. These cross-cutting facts about atmospheric methane — shorter life but greater potency than CO2 — have resulted in two opposing camps: one insisting on a 20-year timeframe for greenhouse gas accounting, the other adhering to the established 100-year frame. This matters because with a 20-year timeframe, generating electricity with natural gas (which, chemically speaking, is essentially all methane) is more damaging to climate than coal-fired electricity.
McKibben blew past this dispute. To hear him at the Center for Brooklyn History, one would have no inkling that there’s an active disagreement over which timeframe to use, that there are staunch climate activists who favor the 100-year time frame, and that the Intergovernmental Panel on Climate Change (IPCC) generally uses the 100-year timeframe.
McKibben’s latest (2025) book. Published by W.W. Norton & Company.
McKibben also insisted that a discussion about natural gas’s potential role in mitigating climate change as a replacement for coal is irrelevant because solar “is now our cheapest resource.” McKibben’s claim, of course, suffuses “Here Comes the Sun,” his 2025 book that extols solar power as the cheapest solution for all of our energy needs. But this too is questionable, because it’s based on cost comparisons between solar farms and natural gas power plants (or nuclear power plants) that fail to consider that electricity supply and delivery is a complex system of wires and plants rather than individual power plants. Based on his remarks, McKibben is choosing to ignore studies such as the comprehensive 2025 report from the Clean Air Task Force that concluded that plant-level cost comparison “is a good metric to track historical technology cost evolution [but] is not an appropriate tool to use in the context of long-term planning and policymaking for deep decarbonization.” And the task force is not alone in finding that when electricity is treated as a system, solar loses its place as the cheapest low-carbon resource.
The dogmatism McKibben displayed at the Brooklyn meeting was unfortunate. We’re in a time when efforts to combat climate change are in retreat. A unified front is required to turn the tide. Instead of doubling down on absolutist positions, activists like McKibben who seem convinced that the solution to climate change is all-renewables, end of discussion, should be seeking common ground with others who want climate action but believe that nuclear power and natural gas must also play a role.
NYC Climate March, Sept 17, 2023. Photo: C. Komanoff.
Climate change activists need to build a bigger tent, rather than call anyone who disagrees with their positions a climate change denier. It is striking that McKibben stuck to his guns after saying in the same talk that the most important goal for everyone right now is to help climate change realists win more House and Senate seats in this year’s midterms. As some have noted, an absolutist position on natural gas appears less likely to achieve that win and politicians are following that advice.
Will McKibben evolve? He has demonstrated that he knows how to build a national climate movement centered around issues like divestment. Given the current political situation, he should focus on building an even bigger tent by welcoming all of the 85% who believe that we need to address climate change but do not agree with his ideological positions.
Rich Miller is an energy lawyer who has worked for a variety of stakeholders and now gives walking tours in lower Manhattan on the history of electricity.
Image generated with Claude. Why have we juxtaposed a bicycle with balcony solar? Read on.
First it was Plug-In Solar. Then it was Balcony Solar. Now it’s Guerrilla Solar, at least according to Inside Climate News, which yesterday proclaimed that The ‘Guerrilla Solar’ Era Has Arrived.
“It,” of course, is Modular solar panels. They’re the hot new photovoltaic solution: cheap enough to buy at Home Depot, easy to hang or prop to catch maximum rays, and small enough to fit on a balcony (if you’ve got one) and plug into your “home grid.” But, alas, too meager a generator of electricity to be more than a bit player in decarbonizing most U.S. homes.
How do I know? I’ve done the math.
A standard, lower-end 220-watt balcony solar array will produce 337 kilowatt-hours a year, or 28 kWh a month averaged over the course of a year. That’s for a 220W unit measuring 3.5 feet by 3.5 feet. (220W x 1/1000 x 17.5% x 8760 hours per year = 337 kWh. Calculation assumes a 17.5% full-year capacity factor, which is arguably generous for New York, where I live. )
Our balcony solar mashup. Top: an install in Germany. Bottom: Home Depot advert.
A typical U.S. home consumes 10,500 kWh a year, or 28 to 29 kWh per day, says Solartech, drawing on U.S. Energy Information Administration data. That puts a home’s daily power needs on par with a balcony solar unit’s monthly output. In effect, once each month the balcony array gifts a homeowner or renter a bit more than day’s full complement of electricity. And earth’s atmosphere gets the same respite: a 3 percent reduction in carbon emissions caused by the home’s electricity usage.
(The 3 percent figure could also be calculated directly by dividing 337 kWh per year of solar production by 10,500 kWh per year to run the home. For bigger or smaller arrays, just prorate your assumed wattage by my 220W; for 440W, say, double my figures.)
Balcony Solar metrics
Why write about balcony solar if it’s so inconsequential? CTC’s mission includes puncturing would-be climate balloons before they ascend too far. In the same vein, we practice quantification to make clear what does and doesn’t move the climate needle. (More on that further below.)
The best way to depict balcony solar’s climate value is to express it in terms of tangible metrics. We’ve selected two. Both assume the basic, lower-end PV array I assumed at the top: a 3.5 foot-square array whose peak output is 220 watts.
1. It would take 50 million 220W balcony solar units (bsu’s) to restore the climate benefit we destroyed in 2020-2021 when we shut the high-performing Indian Point nuclear power plant 32 miles from Midtown Manhattan.
2. A single person cutting back their driving by a mile a day would provide the same climate benefit over the course of a year as a single 220W bsu.
(Calculations in sidebar. Now you know why we led with images of an urban dweller as cyclist and balcony solar user.)
Yes, it’s dense — as befits a sidebar. The numbers tell a story. Follow the color co-ordination.
Ponder that: It would take fifty million smallish bsu’s to level up to the fossil fuel carbon emissions that Indian Point was keeping at bay by supplying the New York City area year in and year out with abundant carbon-free power. Deploying that many balcony solar units would entail 10 bsu’s for each of the 5 million households in the MTA’s service territory. (The Metropolitan Transportation Authority provides subway, bus and commuter rail transit in the five boroughs and seven suburban counties.) Or, if those same households upgraded to 1100-watt bsu’s, collectively they would still make up only half of the lost Indian Point power.
The second comparison, involving driving, is perhaps trickier to grasp but more interesting, since it relates to people’s behavior. Living differently isn’t part of public discourse, at least not in the USA, and especially when what’s being served up is using less. But “reducing,” as we might call it (remember “Reduce, Reuse, Recycle”? or, “Insulate, then Insolate”?) is just as potent for cutting emissions as switching to renewables — even more so when the reducing means driving less, considering the multitude of benefits that accrue from diminishing cars’ imprints on our communities. Still, staying on topic: driving just one fewer mile per day brings about the same shrinkage in carbon emissions as deploying one 220W solar array.
What Balcony Solar boosters are really saying
To be fair, our friends at Inside Climate News and, yes, The New York Times appear to be trying to modulate their balcony solar enthusiasm.
ICN‘s Dan Gearino, whom we cited up front, said he looked to Germany, the birthplace of balcony solar, to see if the units made sense for U.S. households. His takeaway: “It may make more sense financially to spend the cost of plug-in solar on insulation, air sealing or other basic measures to reduce energy use.” Hooray: insulate before you insolate.
Gearino helpfully interviewed renewables guru (and U.S. emigré) Craig Morris, who currently heads Germany’s plug-in solar trade association, Bundesverband Steckersolar. To Morris, balcony solar’s main advantages are that it provides power without taking up land, and that it affords people a way to “become participants in the transition to clean energy.” Behold, guerrilla solar. That, in turn, bolsters “the political consensus that supports the transition.” But Morris also made clear that widespread adoption of plug-in solar would only meet “about 2 percent of Germany’s electricity demand.”
Morris’s “about 2 percent” feels right for Germany. But not for the U.S., where widespread adoption of virtually any individual carbon alternative seems forever out of reach, and where the energy pie is so much larger — think giant fridges, freezers for beer, steroidal homes bursting with piles of powered toys, not to mention industrial and institutional electricity use that Morris correctly excluded from his figure.
Don’t forget to micro-dose. NYT headline + image for David Wallace-Wells’ guest essay (see text). Image by Rui Pu.
Both Gearino and Morris seem more measured than climate journalist Robinson Meyer, founding editor of Heatmap and frequent contributor to The Times, where he wrote about balcony solar in mid-June.
“New zero-carbon power kits will allow Americans to make their own energy choices,” declares the callout to the print version of Meyer’s NYT guest essay, The Tiny Solar Panel That Could Change America. (The even more expansive print headline invites us to “Forget Roofs. Backyard Solar Is the Next Frontier.”)
Wallace-Wells is of two minds. He calls balcony solar “a small way that apartment- and condo-dwelling Americans can take ownership of their energy choices and cut down their pollution on the margins.” No quarrel there, thanks to his qualifiers “small” and “on the margins.” Earlier, though, he opines that balcony solar units “have the potential to change how Americans understand and consume energy,” But read further and you’ll again see Wallace-Wells cautioning that “Balcony solar will play one small role in [the] drama” of transiting to the new world of clean, abundant energy.
Any such caveats are welcome these days, amid widespread solar hoopla. Still, it doesn’t seem to be in Wallace-Wells’ toolkit — or that of Inside Climate News and other mainstream climate journalists — to tutor their audiences as to the true limits of balcony solar and other panaceas. Just like it wasn’t in their field of vision a decade ago to lay out the true stakes of shutting Indian Point as Riverkeeper was singing its siren song.
What’s Next for NY Balcony Solar
Meantime, as Canary Media reported recently (and helpfully), New Yorkers concerned with climate and affordability are waiting for NY Gov. Kathy Hochul to sign the recently passed SUNNY (Solar Up Now New York) Act legalizing balcony and other plug-in solar. It would be head-spinning (and politically suicidal) if she didn’t, given near-universal support ranging from Con Edison to DSA Assembly Member Emily Gallagher, who told Canary Media, “This is the most popular bill I’ve [ever] worked on.”
My guess is that Hochul is waiting for the right moment, and perhaps the right “package,” that can advance and not undercut her push to launch five large new nuclear power plants around the state — one to be built by the public New York Power Authority, the others to be constructed and operated privately. A little bit of math, a la what we offered here a la Indian Point, might help her out.
The governor also must manage the veritable hot potato of her deferred implementation of the landmark 2019 Community Leadership and Climate Protection Act. She might do well to consider jettisoning the act’s unwieldy cap-and-invest centerpiece in favor of a straight-up carbon tax (with the revenues distributed pro rata to the state’s households) in its place. That, far more than balcony (or guerrilla) solar, could blow open the door to the “innovations and technologies we cannot yet imagine” that Wallace-Wells fantasized about in his Times essay.
On 11 June 2026, the Science Based Targets initiative (SBTi) published the most substantial revision of its flagship corporate framework since its introduction. The SBTi Corporate Net-Zero Standard Version 2.0 takes effect on 1 February 2027 and reshapes the way companies approach their net-zero targets.
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