Under a moderate human emission scenario, these feedbacks could add the equivalent of 2X all current U.S. annual CO2 emissions and 6X all current U.S. annual methane emissions. That’s a huge additional source of warming that most climate goals and policies aren’t accounting for.

While there’s still a good degree of uncertainty in how these feedbacks will unfold, scientists now have the most robust estimates to date across four major natural sources of greenhouse gas emissions: permafrost, wildfires, wetlands, and freshwaters.

As Earth heats up, natural sources are starting to release greenhouse gases of their own, on top of human emissions. While well known, modeling these Earth system feedbacks is extremely difficult, meaning they have largely been left out of estimates of future warming.

New research led by Spark estimates warming-induced emissions from permafrost thaw, wildfires, and other sources could amplify global warming by approximately 20–30% & add an estimated 0.2–0.4°C of warming this century (with significant uncertainty).

Big story in this week’s @economist.com about a major risk we are also increasingly focused on: Earth is reflecting less sunlight back into space, rapidly increasing Earth’s Energy Imbalance and making the world hotter.

New research from MIT's Qindan Zhu and Arlene Fiore—supported in part by Spark—explores how climate change could alter the chemistry that removes methane from the atmosphere.

We’re hiring a Chief Operating Officer (COO).

We’re looking for a senior leader to translate strategy into execution and help scale our impact in accelerating progress on unsolved climate challenges.

www.sparkclimate.org/jobs/coo

EPA’s revised its webpage on climate change to downplay the role of human emissions. That risks giving the public an incomplete and misleading picture of the science.

At Spark, we believe good science = better decisions.

We’re hiring for an Operations Director. Spark is looking for an experienced leader to help strengthen and scale our operations as we grow.

www.sparkclimate.org/jobs/operati...

It’s time to unlock faster solutions for a key frontier in methane action: livestock.

Livestock produce more methane than oil and gas, coal, or waste. But unlike most other sectors, we don’t have widely deployable technical solutions to reduce most livestock emissions yet.

We are inviting the land surface modeling community to participate in a new Warming-Induced Greenhouse Gas Emissions Model Intercomparison Project (WIE-MIP) and launching a grant program to provide resources to modeling teams

When the Italian scientist Alessandro Volta captured strange bubbles from a lake in 1776, he couldn’t have imagined the discovery would one day sit at the heart of global climate solutions💡🌍

What if plants could do more than pull CO₂ from the air?

What if they could remove methane—a gas 80x more potent than CO₂ in the near term?

Join our Oct 3 webinar to see what’s possible 👇

Next stop: New York Climate Week

Our team of experts is excited to be participating in multiple events and discussions to accelerate progress on unsolved climate challenges.

We hope to see you in New York.

Reach out to connect with our team.

Atmospheric methane is still rising fast—even as we make progress cutting human emissions.

What’s going on?

We break down the leading hypotheses here:
📖 www.sparkclimate.org/article/what...

Join our Aug 13 webinar for more 👇

We're hiring a Senior Program Officer for our Livestock Enteric Methane Mitigation program to play a pivotal role in advancing work to accelerate the development and adoption of scalable, science-based solutions to reduce methane emissions from livestock:

www.sparkclimate.org/jobs/senior-...