Friends, it is with great sadness that I share that Kristen Poppleton, our Senior Director of Programs, will be leaving Climate Generation mid-December for a new professional adventure as Assistant Director of Minnesota Trout Unlimited. Kristen has played an essential role at Climate Generation over the past 14 years, growing and developing our programs and our reputation. She started here when it was the Will Steger Foundation, and has weathered many transitions, always staying grounded in integrity. Her understanding of and care for our COP program will be especially missed. And we wish her well in her new adventure, knowing that she will remain a friend of Climate Gen and available to us as we might need her. It has been an honor to work with her during the past year. I invited Kristen to share her parting thoughts:
In the summer of 2006, I spent a week at the School of Environmental Studies in Apple Valley, Minnesota participating in Climate Generation’s first Summer Institute for Climate Change Education (the organization was then known as Will Steger Foundation.) I was in graduate school at the University of Minnesota studying Conservation Biology, with a focus on climate change education. My friend Abby Fenton, then one of the three staff members, had invited me to join the Institute knowing my interest in climate change education.
The week was spent with 50 other teachers learning about how climate change was impacting the Arctic region, hearing from Inuit leaders, and developing activities together. The staff were planning an expedition to Baffin Island in the Arctic to see impacts of climate change first hand and to talk to Inuit communities about their experience — we, the participants, were tasked with sharing this with our students.
Back then, climate change wasn’t “happening” so much in our backyards, and when you googled climate change education there was really not much to see resource-wise or jobs-wise. When I joined the team a few years later to work on the Minnesota’s Changing Climate curriculum resource, finding people and resources for this work was one of my first challenges.
Doing climate work is a practice in partnership, innovation, patience, and radical optimism, and it requires people.
People who can help with all that stuff we typically think of as work, but also for fun, laughter, and friendship. As I ready myself for the next adventure beyond Climate Generation, my number one priority is to recognize and say thank you to all the amazing individuals and organizations I have had the privilege of working with over the years — to the PEOPLE that have made this work happen.
From the beginning the School of Environmental Studies (SES) in Apple Valley, Minnesota was a big partner in our work. The team there supported our Summer Institute the first time, as well as two more times over the years. Their students have been our interns, gone on climate-focused expeditions, provided us with valuable grounding in how to do an intentional and learning-focused trip to the international climate negotiations (COP), and now still support us with badging individuals for COP.
I don’t know when I discovered the Climate Literacy Network (CLEAN), but it was pretty early on. My calendar has had the standing Tuesday network meeting on it for almost 14 years. While I haven’t been able to attend as much recently, this network helped build the foundation of our work at Climate Generation today. Through conversations, shared presentations at AGU, NAAEE, NSTA; tweet chats; time spent as a Board co-chair; this group of folks has been leading the charge on climate change education across the country and has introduced me to so many of the partners we continue to work with today. I am especially grateful for the long time mentorship and deep friendship of Frank Niepold at NOAA’s Climate Office and Jen Kretser at the Wild Center.
The US ACE Coalition was a spin off from CLEAN, and it was through this coalition we started to really understand how our work at Climate Generation is grounded in the United Nations Framework Convention on Climate Change and is critical for accelerating climate action. So many great minds contributed to the Framework behind the Coalition and I learned so much from all of you!



I continue to be so excited about the Climate Literacy Certificate offered through Hamline University, a product of many years of dreaming with staff there. Our partnership with the Center for Global Environmental Education, and our staff teaching a Theories and Models of Climate Change Education course, and Global Climate Policy and Solutions during COP are a few of the rewarding moments of this partnership.
I also, of course, found much joy and inspiration through working with colleagues at Climate Generation. I had the pleasure of being a part of some amazing teams over the years focused on local to international projects. Our Climate Minnesota: Local Stories, Community Solutions convening series took our team, along with climatologist Mark Seeley and Terry Webster from the Department of Commerce, across the state to 12 local communities. Stewarding the development of our book, Eyewitness, sharing it through a webinar series, and delivering it to every legislator in the state (during a global pandemic) was a full team affair!
Pulling off our Summer Institute for Climate Change Education every year takes a village, and that village has grown exponentially thanks to the leadership of some amazing education staff and a network of organizations that started locally with SES, Osprey Wilds, the Science Museum, Ft. Snelling State Park, the Institute on the Environment, and St. John’s University, and grew to partners across North America including NOAA’s Climate Office, the Wild Center, EcoRise, and Ten Strands.
I can’t imagine where Climate Generation would be without the passion, excitement, anger, persistence, and joy brought to this organization by high school youth over the years. It is young people that have been our moral compass, our edge-pusher, and our constant reminder that apathy is not a choice; that we must continue to do better than our best work. I have learned so much from them and I also have been privileged to co-work on legislation and coalitions and projects that give me hope. One of my greatest joys is leaving our organization knowing that we have a former high school YEA! member on our youth program staff today.
Our ongoing organizational journey from equity to antiracism has been one of the most important, life-changing professional experiences I have had. I have been so humbled by the individuals I have had the chance to learn from, wrestle and cry with, have profound “a-has” with, and share collective humanity with. These learnings, this journey of seeing the world, is ongoing and it is a gift I bring with me.
Finally, experiential learning can be a profound spark for action, and in 2015 when my colleague and I brought a group of 10 teachers to COP21 in Paris to launch our annual Window Into COP program, I was “sparked.” Over the years, the delegates we have been able to support to attend the UN climate negotiations have been some of our most passionate and sustained partners — citing the experience as an activation point for their personal climate action. Every year in planning COP, I am so fortified by the people we meet and work with to plan an educational and impactful program and experience at COP. I am so grateful to be able to end my time with Climate Generation supporting this program and our largest and most diverse delegation ever!


Over the years, I think I may have taken on almost every role in the organization, at least for a short period, but I spent the majority of my time in programming. I was a part of stewarding its growth from a team of one to a team of ten program experts in youth, education, and community. I believe that an organization matures due to the support, passion, smarts, mistakes, and investment of many people. It’s working with colleagues at Climate Generation, and partners around the world, that has provided me with the sustained focus, inspiration, knowledge, and support to do this work.
I look forward to watching Climate Generation continue to be a force in the climate movement — knowing that people are at the heart of this work!
It would mean a lot to hear from you if you have any memories of working together over the years! Consider adding a photo or written memory to this padlet with the password kpmemory.

Susan Phillips
Executive Director

Kristen Poppleton
Senior Director of Programs
The post Holding the Both/And of Goodbyes appeared first on Climate Generation.
Climate Change
Every country needs a model to help optimise its energy transition
Claver Gatete is Executive Secretary of the UN Economic Commission for Africa. Jason Veysey is Energy Modeling Program Director and Senior Scientist at the Stockholm Environment Institute. Lisa Sachs is Director of the Columbia Center on Sustainable Investment at Columbia University.
The case for global energy transition has rarely been clearer. The closure of the Strait of Hormuz earlier this year exposed the cost of unplanned, fossil-dependent systems, while the falling cost of renewables, the rising penetration of electric vehicles, and the growing value of demand flexibility have made the direction of travel obvious. The benefits of a clean, secure, integrated system are no longer in dispute. What remains unclear is how to build it.
Countries around the world have called for faster renewable energy deployment and alternative energy arrangements. A secure, affordable, resilient, decarbonised system requires specific investments in specific places in a specific sequence, optimised across sectors and borders. But very few governments have the analytical foundation to translate those imperatives into investment.
The two instruments that are supposed to determine investment priorities for decarbonisation – Nationally Determined Contributions (NDCs) and country platforms – cannot answer the most basic question facing any country undertaking an energy transition: what should the energy system look like?
To close this gap, every country needs a bankable, economy-wide optimisation model for its energy system. A model is not a plan, but it can help answer the critical question of what the future energy system should look like. It shows how optimal scenarios vary as assumptions and policies are adjusted, calculates investment requirements and sequencing, and quantifies how system costs are affected by assumptions, policies, and exogenous variables like trade policy and financing terms.
Tool for efficient investment
Optimisation is a simplified way of simulating an energy system, but it can be an extremely powerful tool for moving energy planning from reactive (how do we manage the disparate actions in the energy system?) to intentional (what energy system underpins our national objectives?). A model can show how optimal scenarios vary as assumptions and policies are adjusted, and how investment requirements are quantified and sequenced.
Optimisation models can treat the energy system and the sectors it serves as an integrated whole, optimising across sectors and projects in ways that can be mutually reinforcing. If considered independently, growth in industrial demand, transport electrification, and digital infrastructure can add stress to the energy system. But an optimised plan can arrange these and other changes in an efficient, synergistic way.
Two to tango: How governments can unlock private investment for national climate goals
New load can be added where low-cost power is available; industrial customers can ensure the viability of investments in energy supply; electric vehicle charging policy can smooth load curves and reduce costs for all consumers.
Additionally, optimisation modeling can also change the financeability of investments. Taken alone, each project faces uncertainty about the rest of the system, which raises the cost of capital and causes projects to stall or unwind after contracts are signed. A coherent, optimised plan makes visible the coordination that private capital would otherwise have to bet on: identified offtake, sequenced and committed transmission, contracted power supply, and so on.
What COP31 and COP32 should do
The upcoming COPs in Turkey and Ethiopia can shift the center of gravity of international climate cooperation from fragmented commitments to planning. Three moves are urgently needed.
First, optimised, economy-wide, long-term energy system planning must be the foundation on which any meaningful NDC, country platform, or finance commitment rests. NDCs are typically drafted by environment or single-line ministries, with limited cross-sectoral input from ministries of energy, finance, and planning. They contain targets, derived from sectoral strategies or national commitments, not from an analytically grounded picture of what the energy system should look like and what investments would make it work. Country platforms are generally a portfolio of investments assembled from existing project pipelines, rather than derived from a system-level analysis of what an optimised, decarbonised energy system would require.
Second, recognise regions as a key planning unit. Modern integrated energy systems are inherently regional. Renewable endowments are unevenly distributed; balancing variable supply across borders lowers aggregate cost, reduces redundant backup capacity, and unlocks economies of scale no individual nation can achieve. Many energy investments in Southeast Asia, East Africa, Southern Africa and Central Asia may only be financeable in a regional context. Assessing domestic infrastructure without regional optimisation perpetuates the perception that decarbonisation is more expensive than it is.
COP31 leaders unveil global targets, with spotlight on electrification
Third, finance the planning capacity. A coordinated commitment by multilateral development banks, bilateral donors, and philanthropic partners to help every region and its constituent countries develop and maintain their own modelling capability, with open-source tools and regional analytical hubs, would close the most consequential gap in the current architecture. The cost is small relative to current spending on country platforms, failed project preparation, and misallocated infrastructure investment.
This includes supporting regional institutions such as the ASEAN Centre for Energy, the African Energy Commission, regional power pools, and the Latin American and Caribbean Energy Organization to determine what optimised regional systems require. Country-by-country pledging, repeated at every COP, will not deliver what meaningfully integrated systems can.
The 2026 energy crisis made the cost of unplanned, fossil-dependent systems newly visible. That window of clarity will close. The international community should seize the moment to build the planning foundation that has been missing for thirty years, rather than commissioning another round of NDCs or pledges, striving for outcomes neither was designed to deliver.
The post Every country needs a model to help optimise its energy transition appeared first on Climate Home News.
Every country needs a model to help optimise its energy transition
Climate Change
Explainer: How the ‘super El Niño’ will reshape the world’s weather
The world is currently experiencing what is expected to become the strongest El Niño on record – dubbed a “super El Niño” by many.
El Niño is the warm phase of a recurring climate pattern in the tropical Pacific that releases heat from the ocean into the atmosphere.
This temporarily raises global temperatures and reshapes rainfall and extreme weather around the world – impacting the lives of billions of people.
The current El Niño event began in June and is expected to last into 2027.
El Niño is part of a wider climate pattern called the El Niño-Southern Oscillation (ENSO) cycle.
The ENSO cycle also has a cool phase, known as La Niña, as well as a “neutral” phase. El Niño and La Niña events typically last between nine and 12 months, but can go on longer.
Below, Carbon Brief explains how the ENSO cycle works, its impacts on extreme weather and global temperatures and why this El Niño event is projected to be the most intense since records began.
The post Explainer: How the ‘super El Niño’ will reshape the world’s weather appeared first on Carbon Brief.
https://interactive.carbonbrief.org/el-nino-explainer/index.html
Climate Change
Analysis: The two largest reservoirs in the US have hit record-low levels
The second-largest reservoir in the US reached a record-low water height on Saturday – just days after the country’s largest reservoir broke its own record.
Both Lake Mead and Lake Powell are located on the Colorado River.
They provide water for populations across seven US states in the south-western US, with around 40 million people getting some or all of their municipal water from the Colorado River.
The river also provides water for around 5.5m acres (22,258 square kilometres) of farmland across Colorado, Arizona, California and the other states in the river basin.
Experts tell Carbon Brief that climate change, population growth and over-consumption are all contributing to the current record-low levels of the reservoirs.
Record lows
At full capacity, Lakes Mead and Powell can hold a combined 68 cubic kilometres of water – enough to supply all household consumption in the contiguous US for nearly 1.5 years. However, the water level in both reservoirs has been declining for decades.
The chart below shows the water level of Lake Mead, in metres above mean sea level. The reservoir, which began to fill in 1935 following the construction of the Hoover Dam, has a “full pool” maximum capacity of 347.60 metres. The water level in Lake Mead reached a record low of 317.11 metres on 7 August.

The following chart shows the water level of Lake Powell, in metres above mean sea level. Lake Powell’s full-pool level is 1,127.76 metres.
While the reservoir reached its maximum capacity several times in the 1980s, it has not done so since. On 15 August, the water level in Lake Powell was recorded at a new record-low of 1,072.87 metres.

Both reservoirs have continued to decline in the days since breaking their respective records. The downward trend will largely continue in both lakes until next spring, when the snowpack in the mountains of the Upper Colorado River Basin begins to melt, says Dr Jack Schmidt, a senior research scientist at Utah State University’s Center for Colorado River Studies. He tells Carbon Brief:
“The big dilemma of the moment is that we’re only in the middle of August, and we have no assurance of what the coming winter will be. The only thing we can be sure of is that we will be depleting overall total basin reservoir storage from now until, roughly, early April.”
Compounding factors
The record lows across the two reservoirs are the result of several compounding factors, experts tell Carbon Brief.
Since the turn of the 20th century, the amount of water flowing along the Upper Colorado River has declined by about 20%. Research suggests that half of this decline can be attributed to human-induced climate change.
Most of the river’s streamflow comes from the snowpack of the Upper Colorado River Basin, which stretches across five western US states but is primarily located in Colorado and Utah.
This region has been gripped by a historic “megadrought” for more than a quarter of a century. Nearly half of the megadrought’s intensity over 2000-18 is attributable to climate change, according to a 2020 study.
At the same time, the increasing population in the US south-west has put added pressure on the Colorado River’s water supply. The number of people obtaining some or all of their water from the Colorado system has grown by 15 million (around 60%) since 1992.
Schmidt tells Carbon Brief:
“There’s an ultimate cause of the present water crisis, and there’s a proximate cause. The ultimate cause is a warming climate, a warming planet and a pretty clear correlation between warming conditions and decreased runoff in the Colorado River Basin.
“The proximate cause is that in this messy democratic republic of ours, big policy decisions that match the variability of the climate occur painfully slowly – with intense political negotiations – and only incrementally.”
On 31 July, the US Bureau of Reclamation, which manages water resources in the western US, released an environmental impact statement on its proposed post-2026 strategy for managing Lakes Powell and Mead. The strategy itself has not been released yet.
Schmidt notes that the statement does appear to give the Bureau flexibility to “respond to crisis” by reducing the delivery of water to several states. However, he adds:
“They acknowledge it won’t work if we just stay critically dry, and of course every climate model for the 21st century, especially with a continually warming planet, says that that’s exactly what’s going to happen.”
The post Analysis: The two largest reservoirs in the US have hit record-low levels appeared first on Carbon Brief.
Analysis: The two largest reservoirs in the US have hit record-low levels
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