Last Updated on May 9, 2024
I love houseplants: They can really open up a room and are such a great way to fill a space. I currently have a pretty Money Tree plant that’s pet-friendly and adds the perfect pop of green to my desk space.
I’m not alone: The houseplant industry is booming. In 2019 a survey revealed U.S. houseplant sales increased by 50% to $1.7 billion in three years’ time and that trend has snowballed since then.
But is this horticultural hobby eco-friendly? That depends on how you get your plant babies, and how/where they were grown.
Ironically, green indoor spaces can come at a cost to the environment.
Like everything else we buy, houseplants also have an environmental impact. There are several factors to consider, such as “plant miles”, plastic waste and peat moss harvesting.
Here’s what you need to know about the plant industry’s environmental footprint, if your plant obsession is contributing to it, and what you can do about it.
environmental impacts of houseplants
Plants may be green, but that doesn’t automatically make them eco-friendly.
There are multiple environmental impacts of houseplants to consider. Here are a few that we will be diving into:
- Plant miles: How far did your plant travel to get to you?
- Plastic waste: Plastic pots are the primary container used to house plants.
- Peat moss harvesting: Peat moss, an ingredient in most potting mixes, is being overharvested.
plant miles
Many of the houseplants we love come from tropical or subtropical environments. That’s a big reason they thrive indoors because they need consistently warm temperatures.
Most houseplants are imported from overseas and travel hundreds of miles before getting into our homes. The Swiss Cheese plant is just one example: It hails from Panama and southern Mexico.
Transporting plants over long distances, whether by plane, boat or truck generates a lot of carbon emissions. This is often referred to as “plant miles,” aka the total distance houseplants travel to get to you.
However, plant miles aren’t the only problem: It’s how they’re harvested that also matters. Plant poaching is a real threat due to increasing interest in rare plants and how much they fetch on the black market.
For example, the World Heritage Site is the world’s most biodiverse desert. More than 3,000 plant species exist in a relatively small area. Many of them are prized succulents that fetch high prices on the black market.
Some of these species live in an area smaller than a soccer field, so it would be very easy for a poacher to render the species extinct in a single morning.
For this reason, it’s so important the plant industry becomes more transparent about where they’re sourcing their plants.
what about houseplants grown in greenhouses?
One potential solution to combat plant poaching is to grow houseplants in a greenhouse. However, this is an imperfect solution, as greenhouses are huge energy suckers likely powered by fossil fuels.
Greenhouses are equipped with lighting and high-tech irrigation systems that require a lot of energy to maintain, especially for fickle houseplants that need a specific amount of warmth, sunlight, and water.
While greenhouses certainly cut down on plant miles, and ensure there’s no plant poaching, they would be a lot more sustainable if they ran on renewable energy. Unfortunately, many do not, or are not transparent about where they’re sourcing their energy from.
plastic waste
Plastic pots are the main container used to house most indoor plants. However, most houseplant pots are made from polypropylene (plastic #5) which isn’t widely accepted via curbside recycling services. Altogether, only 1% of plastic #5 gets recycled in the US.
That means if you want to transfer your houseplant into a more stylish container, the plastic pot it came in will likely end up in the trash. In fact, according to Marie Chieppo, Principal at EcoPlants Plans, 95 to 98% of all plastic plant pots end up in landfills.
This is a big problem for the environment, considering plastic’s life cycle is carbon intensive from beginning to end.
Plastic is a non-renewable resource that’s made from crude oil, which is extracted from the earth via fracking. It’s then manufactured into plastic in a fossil-fuel powered factory that uses a lot of energy and water.
Overall, only 5-6% of plastic gets recycled. The other percentage ends up in our landfills, environment, or incinerated.
Plastic never truly breaks down. While it is technically biodegradable (which simply means it will break up over time), it cannot be fully returned to the soil (aka composted).
That means over the course of hundreds of years plastic will break down into microplastics. Microplastics have already been found in human blood, feces, and placentas. It’s estimated we consume 11,000 microplastics per year, and the health effects of this are still unknown.
Despite all this, avoiding plastic pots is almost impossible if you want a houseplant. They’re used almost exclusively.
peat moss harvesting
Another big environmental impact of houseplants is the soil used in their pots. Often times, houseplants will be planted in soil that contains peat moss.
Peat moss prevents plants’ nutrients from washing away during waterings. It can also hold several times its weight in moisture, then release that moisture into the plant’s roots when needed.
But the problem lies in its harvesting, which requires the constant disruption and overharvesting of peatlands.
Peatlands are wetlands that play a critical role for preventing and mitigating the effects of climate change, reducing flood risk, preserving biodiversity, and ensuring safe drinking water.
These wetlands are the largest natural terrestrial carbon sinks, meaning they store more carbon than all other vegetation types in the world combined.
When peatlands are damaged and harvested for peatmoss, this leads to a major source of greenhouse gas emissions. According to the IUCN, ~5% of global greenhouse gas emissions from land use come from damaged peatlands.
To extract the peatmoss, tractors scrape along the surface of peat bogs, which releases CO2 back into the atmosphere.
Peatlands can also catch fire, which they often do when harvested in dry conditions. Burning peat is even more polluting than burning coal and can have severe effects on human wellbeing.
This also impacts wildlife too: The IUCN attributes the 60% decline of the Bornean orangutan population to the loss of peat swamp habitat over a 60-year period.
how do you grow houseplants sustainably?
Okay, so now that you’re aware of the problems, lets talk about the solutions!
You don’t have to toss out the houseplants you already have either (that would be counterproductive).
Here’s how you can make your houseplant addiction a little bit more sustainable.
buy less plants
I know this sounds obvious, but reigning in how many houseplants you accumulate is the easiest way to make a big impact. Everything we consume has an environmental impact, so buying less is always the best option.
propagate cuttings
Have some houseplants already? Or know someone who does? Propagate some plant cuttings to grow a whole new plant. This way, you don’t have to buy anything new.
Use a small upcycled empty glass jar, like a spice container, to propagate your cutting. Just fill it with some water, put your cutting inside it, and place it in a sunny location. When you see roots growing, it’s time to plant it in soil!
use sustainable potting soil
Peat-based soil is most commonly used in houseplants. But peatmoss bogs are vital carbon sinks that are being overharvested, which is contributing to climate change.
Instead, look for peat-free soil, like Rosy Soil, which instead uses biochar, compost, pine bark fines, mycorrhizae, pumice, and sand. There are no synthetic ingredients in their soil mixtures. Their packaging is recyclable and made from plant-based ingredients.
It’s also a great idea to start buying your houseplants from a transparent and sustainable company like The Sill. All their plants are potted in organic potting soil that’s made from a mix of worm castings, coir, compost, aged pine bark, and rice hulls. It’s completely peat-free.
Plus, The Sill provides upcycled grow pots as an option, and they use carbon neutral shipping on nearly all their online orders.
You can also just use compost you made yourself! Here’s how to compost in your backyard.
RELATED: How to Build a DIY Compost Bin
For smaller spaces, Lomi is a great option because it creates nutrient-rich Lomi Earth (aka pre-compost) which is rich in microbial cultures and organic matter. This is perfect to use on plants of all kinds to help them flourish.
upcycle your plastic pots
It’s hard to avoid plastic pots with houseplants. Instead of tossing them out, disinfect them and save them for other gardening projects. You may even be able to return them to the nursery so they can be reused. Or check and see if your local community garden has any need of them.
get local plants
Look for local plant swaps or garden clubs in your area. They’re often organized online, via social media, or by libraries. Other gardeners are often happy to give you cuttings of their own plants and can instruct you on tips to help them thrive.
Do you have a plant addiction too? Will you be trying out any of these tips? Let me know in the comments below.
The post Is Your Plant Addiction Eco-Friendly? appeared first on Going Zero Waste.
Last winter, we kept our house at 60 degrees and our electric bill was STILL $280. I’ve been interested in solar for a long time, but on the long list of house projects (especially when you’re restoring a 200 year old house on the historic registry) some are more pressing than others.
But with a few of those major projects wrapping up, and a daunting bill before me, I figured now was the time for a quick google search on solar panels, and let me tell you….. It can be very overwhelming.
Figuring out the rules (cough, cough, historic society), incentives or rebates if applicable, how much it would cost, how much we could save, etc. felt a little like a part-time job. But, one website made it really easy to compare things, and I am happy to be partnering with Aurora Solar to share that site with you.
Because I think you should be able to easily run the numbers on your house without a lot of hassle!
This post is sponsored by Aurora Solar, but all thoughts and opinions are my own.
If you’ve ever gotten a solar quote, there’s a good chance that Aurora Solar was involved. Aurora was founded in 2013 after its co-founders spent seven months trying to design a solar energy system using a patchwork of different tools.
Afterall, designing a solar system shouldn’t be harder than actually installing one. So they built software specifically for solar professionals. Today, more than 7,000 solar organizations use Aurora, and more than 20 million solar projects have been designed using the platform. They are also the largest solar software provider in the world. Their software is used by roughly 80% of the top 75 residential solar companies in the U.S.
All of this tech has been primarily used by professional installers to map your roof and then create a proposal, but now Aurora is offering this tech to us to help compare quotes.
So instead of having to call a bunch of different installers, I could use the Aurora Solar Marketplace to understand my solar potential, compare estimates, understand my possible savings, look into battery storage and other home electrification incentives, and map out different financing options.
1. know how much electricity the system will actually produce
Before you even get into the price, make sure you understand what you’re actually being quoted.
Two solar systems can have very different prices because they may not be the same size or produce the same amount of electricity. A cheaper system might simply have fewer panels and offset less of your electric bill.
With Aurora, you can compare solar estimates and see the system size, energy production, and how much electricity the system should offset.
You can also upload your utility bill to get a solar estimate based more closely on your actual energy usage, to make the quote accurate for you instead of a ‘generic household’.
2. understand the solar payback period
Aurora calculates things like payback period and lifetime savings, which makes it much easier to understand the long-term finances.
The solar payback period is basically how long it takes for your estimated savings to make up for what you spent on the system, and this is the number that surprised me most!
One estimate had a payback period of around 7 years, and another was closer to 11 years! Over 25 years, two of the estimates I looked at had almost a $13,000 difference in projected savings.
Of course, these are still projections as electricity rates can change (HELLO 2026) but when you’re trying to compare two options for the same house, knowing that one is projected to pay for itself four years sooner is pretty useful information.
3. look beyond the monthly payment
Depending on the installer, you may be looking at a cash purchase, solar loan, lease, or power purchase agreement.
But thankfully with Aurora you can compare the different financing options side-by-side which makes it a lot easier to see the trade-offs. One option may have a lower upfront cost, another may have a lower monthly payment, and another may give you better long-term savings.
4. find out which solar incentives actually apply to you
The minute you start Googling solar, you can find federal incentives, state incentives, utility programs, rebates, net metering, and a whole bunch of information that may or may not even apply to where you live.
And some of the articles ranking at the top of Google are several years old! (RIP to the federal incentives canceled at the end of 2025.) But, Aurora can account for solar incentives when calculating the cost and savings of a system, including state, local, and utility-specific programs.
I would still double check any incentive or tax benefit you’re planning to use before signing a contract, especially because programs and eligibility can change, but having all the relevant information in the same place makes the research process much less overwhelming.
5. research the installer, equipment, and warranties
Aurora lets you compare solar installers based on things like reviews, reputation, pricing, and financing options, which I think is just as important as the actual quote.
I’d also look closely at what equipment is included. What panels are they using? What kind of inverter? How long are the equipment warranties? Is there also a workmanship warranty from the installer? Who handles repairs if something goes wrong five or ten years from now?
And, I know I’ve said it a million times, but it’s nice to see it side-by-side without having to fill out a bunch of forms and be hounded on the phone just to get an idea of what solar may look like.
The post How to Compare Solar Quotes: What to Look For Before You Choose appeared first on Going Zero Waste.
How to Compare Solar Quotes: What to Look For Before You Choose
Green Living
Sustainability In Your Ear: XPRIZE’s David Babson on Why Climate Grand Challenges Need Buyers, Too
Buyers contracted nearly 30 million tons of durable carbon removal in 2025, more than triple the 2024 total, according to CDR.fyi data reported by Heatmap. About 90% of those purchases came from a single company, Microsoft, and suppliers delivered only about 450,000 tons during the year. That is a sliver of the six to 10 billion tons of removal a year that climate scenarios suggest the world will need by 2050. The technology to pull carbon out of the air works, but the customers needed to scale it remain scarce.
Our guest today, David Babson, is executive vice president of the Energy, Climate, and Nature domain at the XPRIZE Foundation. He calls the slow progress a market failure, because the technology is progressing faster than it is being adopted. Babson previously led MIT’s Climate Grand Challenges initiative and was a program director at the U.S. Department of Energy’s ARPA-E. His portfolio includes XPRIZE Carbon Removal, which drew 1,334 teams and whose participants have raised more than $3.3 billion. In April 2025, Mati Carbon won its $50 million grand prize for spreading crushed basalt on smallholder farms in India, where the rock locks away carbon dioxide. “If people could make money taking carbon out of the air and putting it underground, as opposed to only being able to make money taking it from underground and putting it in the air, we would be in a better place,” Babson says. Mati is weathering the slump in part because its rock dust also improves soil health and crop yields, giving farmers a reason to participate that doesn’t depend on carbon credit prices.
XPRIZE’s answer is to change what winners receive. Babson describes “mixed purses” that pair a cash award with a guaranteed buyer through an advance market commitment, a power purchase agreement, or an offtake contract. In one thought experiment, a carbon removal prize would come with a separate $1 billion fund raised from credit buyers, which qualified teams could draw on as they deliver verified tons. XPRIZE is applying the same thinking to a planned series of fusion energy prizes, pairing technical milestones with market mechanisms to build the supply chain that commercial fusion will require. The same gap between invention and adoption shows up in other XPRIZE competitions. On September 23, XPRIZE Wildfire awarded about $4.55 million from its $11 million purse, with defense contractor Anduril Industries taking first place in autonomous fire response along with a $1 million Lockheed Martin bonus. Babson expects costs to fall as fire agencies adopt the tools and as startups license individual components into cheaper platforms, though underfunded agencies will need a way to buy the first systems. He also notes that the competition left fuel management and ground-based autonomy for future prizes. Earlier this year, program director Andrea Santy told us that field testing had moved ahead of drone regulations. In biodiversity, Limelight Rainforest won $5 million for surveying 100 hectares of tropical forest in under 24 hours and identifying more than 250 species. Biodiversity still lacks a price, but Babson argues that once ecosystems can be measured, slow-walking policy becomes “a dereliction of what they should be doing.”
We also discuss the tension inside XPRIZE’s vision of “equitable abundance,” including a $101 million Healthspan prize that could add years of consumption to longer lives. Babson argues that abundant, cheap clean energy would let society move beyond efficiency as its organizing principle, powering uses such as indoor vertical farms that could return millions of acres of farmland to nature. You can follow XPRIZE’s new competitions and get involved in its prize ideation workshops at xprize.org.
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Interview Transcript
Mitch Ratcliffe 00:36
Hello. Good morning, good afternoon, or good evening, wherever you are on this beautiful planet of ours. Welcome to Sustainability In Your Ear. This is the podcast conversation about accelerating the transition to a sustainable, carbon-neutral society, and I’m your host, Mitch Ratcliffe. Thanks for joining the conversation today.
Let’s talk about the power and the uses of grand challenge programs to kickstart low-carbon industries and respond to the changing environment. Over the past several years, we’ve talked on the show with leaders of grand challenge programs designed to accelerate progress on humanity’s most difficult challenges, from pulling carbon out of the atmosphere to fighting rapidly growing wildfire threats in cities and rural communities. Many of these competitions have been launched by XPRIZE, whose leaders have shared on the show the stories of these competitions as they launched and unfolded.
Today is a chance to take stock, to look back and think about how climate markets, technology, and politics are changing fast, and how that makes this a good moment to ask the question: Are these programs designed to accelerate progress actually delivering that progress?
Our guest today designs XPRIZE’s climate bets. David Babson is executive vice president of the Energy, Climate, and Nature domain at the XPRIZE Foundation. Before XPRIZE, he was the executive director of MIT’s Climate Grand Challenges initiative and a program director at the U.S. Energy Department’s ARPA-E energy technology research agency.
His portfolio includes the largest incentive in prize history. In 2025, Mati Carbon received a $50 million grand prize for their enhanced rock weathering solution for capturing and drawing down carbon, and XPRIZE now reports that companies participating in its programs have raised $3.3 billion. That carbon removal win arrived just as the removal market hit serious turbulence, and as XPRIZE’s wildfire competition wrapped up with its top prize still unclaimed.
So we’re going to discuss what grand challenges can really accomplish, which winners continue to build and which stall, and what the reasons are, as well as the tensions inside a portfolio that funds both climate solutions and longer human lifespans. We’ll get to the conversation right after this brief commercial break. Stay tuned.
[COMMERCIAL BREAK]
Welcome back to Sustainability In Your Ear, and welcome, David Babson, to Sustainability In Your Ear. How are you doing today?
David Babson 03:10
I’m doing well.
Mitch Ratcliffe 03:11
I’m glad to have you here. You’ve run research portfolios at ARPA-E and MIT. What can a prize purse accomplish that a well-funded grant program can’t, or are they complementary?
David Babson 03:22
They’re absolutely complementary. The way that I think about it is that the value of these different mechanisms for promoting innovation is at different parts of the innovation supply chain, if you will. A prize is not a substitute for the very necessary investments that places like governments make into basic, applied, and advanced research. In fact, those types of investments are really valuable for establishing the innovation ecosystems and the technical capacities to eventually win prizes.
Where the prize is very valuable is somewhat downstream: translating technologies, ideas, and innovations that are coming out of academia and labs to market for scale. It challenges the innovators to imagine those technical capacities as solutions to global challenges, and then the visibility that the prize brings to those translations of technologies de-risks funding to flow to those innovators so they can imagine their uses in practice.
So I actually see them as very complementary, particularly when it comes to solutions in the energy and climate space that require rapid adoption of technologies in markets to have impact. Just having an energy solution or a climate solution is not valuable unless it can be de-risked and connected to markets to scale for impact. And that’s what the prize is actually very good at doing.
Mitch Ratcliffe 05:22
That comes through in the impact report that you all published recently. About 1,300 different organizations were catalyzed. The groups came together, apparently, because of their desire to compete in the competition.
What I’ve found in my work with public-private partnerships, in particular, is that impact investors are looking for that initial traction, and to a degree, the prize and the distribution of money within the prize group is that catalyst that says there’s a real opportunity for an impact profit, something that both does good and is profitable. How does the organization consult with the financial communities that are going to back these companies once your prize has been awarded? Is there a backroom conversation about that, for lack of a better way of putting it?
David Babson 06:10
Not an explicit backroom conversation about it, but the prize itself brings attention to the innovations that are coming out to win the competition. Oftentimes, as you’re noting, these impact investing communities exist, and they are looking for technologies to invest in to have impact.
What the prize is effective at doing is casting a wider net and surfacing the best solutions across the board, where there may have been silos in the past, or there may not have been transparency to individual investors about where to put their money. The prize is capable of elevating all of them, creating better visibility, and therefore, just by its inherent operation, creates better opportunities for investment capital to flow to the right types of teams to have greater impact more quickly.
So we don’t have explicit discussions with those types of investor communities to have them directly connected to individual prizes. But we often consult with investors and experts in industry to inform the metrics that we would want to have demonstrated, so that we know that when teams are winning our competitions, the demonstrations that they do are de-risking capital to flow to those innovators so that they can be translated to market.
Mitch Ratcliffe 07:47
We’re talking about growing industries, which of course means diversifying into a lot of specializations. Once you’ve got this kind of anchor winning team or teams, how does XPRIZE think about propagating the information that’s necessary for the rest of the industry to grow and fill in around them, in order to provide the kind of comprehensive geographic coverage and range of functions that are necessary for the industry to thrive? Is that something that you think about cultivating, like you would in agriculture?
David Babson 08:22
It is something that we think a lot about. With a few of the more recent prize competitions that we’ve run, we have also paired those competitions with a subsequent impact phase, which is designed to further build the community that has been established through the operation of the prize and connect the technologies that came out of the competition to the right types of markets and investors so that they can scale.
So that is one of the things that we’re thinking about in future competitions as well: not just running an innovation competition to surface new innovations, but how do we augment the community building that the prize provides as a way to also promote the back-end business models and industries that can scale those solutions for impact?
Mitch Ratcliffe 09:19
How would you describe the patterns you’re looking for that indicate that an organization can become that durable enterprise? What separates them from the rest? Have you got thoughts about that?
David Babson 09:29
I do have thoughts about it. In a lot of ways, the rigorous metrics that we set up when we’re designing the competition are informed by what experts believe would be the necessary demonstrations to actually generate a solution that is market viable. So a lot of it is very quantitative in terms of how we architect the competition.
But what we’ve also seen is that there are elements of winning teams that can’t always be controlled by just the scientific metrics. A lot of times, it’s the composition of the team, how diverse they are, and the unique mentality that the leaders of the team have in terms of their vision and their ambition. Those are parts that you can’t control for, but the prize model is very effective at also attracting the type of entrepreneurial, big-thinking individuals that actually tend to be behind some of the most successful companies.
Mitch Ratcliffe 10:40
Those big-thinking individuals often struggle with the transition from inventor. And to your point about the academic community often being the source of many of the teams that are competing, that’s not something that academics are necessarily good at. As part of the prize process, do you also begin to coach them on how to staff for the operators who are going to be able to translate the invention into a market success?
David Babson 11:04
Absolutely. On the front end, the prize itself sets a target that is typically beyond what researchers in an academic setting are imagining for what they’re doing. It gives them a way to imagine their technical innovations as scalable solutions to big problems, so that gets them excited to be in the competition. But you’re right: they’re not necessarily all business-minded or have the types of experience that would allow even very, very good solutions to become very strong companies and business models.
So one of the things that we have tried out recently, and it’s a model that we could replicate in future competitions as well, is an accelerator cohort in the carbon removal prize. It was optional for teams to opt into the cohort to get additional guidance and consulting from experts in startups and technology translation. That would help them think about the unique elements of their proposed carbon removal strategy, how they would connect it to markets, and how they would drive greater value for their solutions.
That is something that we can do as part of the competition, because we’re building a community of innovators that are striving toward a shared aim. Therefore, we can better define what an accelerator cohort looks like, so that