John Holdren awarded 2026 AIP Karl Compton Medal

Prize for leadership in physics to be given to Harvard professor and former OSTP director for engaging the public and promoting sound governmental policies.

AIP’s 2026 Karl Taylor Compton Medal for leadership in physics is being awarded to Professor John Holdren of Harvard University and former Chief Science & Technology Advisor to President Obama.

Named after prominent physicist Karl Taylor Compton, the medal is presented by AIP every two years to a highly a distinguished physicist who has made outstanding contributions to physics through exceptional statesmanship in science.

Holdren was chosen by the selection committee “for his scientific leadership in engaging the public and promoting sound governmental policies and key international agreements.”

Read more on the American Institute of Physics’ website.

COPs need a science track – not a seven-year science lag

experts sit on a panel at COP29. a screen behind them says "impacts of growing wildfire-related emissions on the global carbon nudget, the +1.5 limit, and the next NDCs"

At COP30 in Belem, negotiators have again been asked to shape the planet’s future using climate science that does not reflect latest high-quality research. The problem is not the evidence itself. It is the way we organise it for global climate diplomacy.

Read more on Carbon Pulse.

Grazing lands as climate solutions: Key practices for carbon and biodiversity

two young cows with black fur look at the camera

A new review of U.S. grazing land practices explores how land stewardship and ranch management practices can help fight climate change. The study identifies promising strategies—such as wetland restoration, planting legumes in pastures, and adjusting grazing intensity—that could boost soil carbon, cut greenhouse gases, and deliver co-benefits for biodiversity, water quality and soil health. But it also underscores a critical need for more research to guide long-term sustainable management.

Read more on Cool Green Science.

What the COP30 climate summit in the Amazon delivered for forests and Indigenous people

river in the foreground, Amazon rainforest in the background

Brazil insisted on hosting this year’s COP30 climate summit in the Amazonian city of Belem to put rainforests at the heart of negotiations on how to curb global warming.

But as delegates from almost every country concluded tense talks under the rainforest’s humid heat, the outcome for trees and their guardians, though unprecedented, was bittersweet.

Read more on Reuters.

Tropical Forests, Forever?

a woman in a white hard hat walks away from the camera, down a path in the lush green Amazon forest

As the host of this year’s UN climate treaty negotiations and home to most of the Amazon tropical rainforest, Brazil led a major advance for forests and their indigenous inhabitants called the Tropical Forest Forever Facility. The new $125 billion fund, with guarantees for investors, will send its profits to countries with documented forest preservation, including some cash going directly to indigenous and local populations. Michael Coe, a senior scientist at the Woodwell Climate Research Center who was at COP30, joins Hosts Steve Curwood and Jenni Doering to explain why forest protection is a vital piece of stabilizing the climate.

Listen or read more on Living on Earth.

TFFF “an Arrow in the Quiver, not a Silver Bullet”

Brazil-backed fund aims to provide long-term funding for tropical forests via a model that incentivises stewardship and crowds-in private investment.

canopy of a tropical tree

The tropical forest fund hailed last week by Brazil’s President Lula has the potential to deliver policy change as well as cash flows, but further government backing is just one of several keys to investor support.

Speaking at the COP30 Leaders’ Summit, President Luiz Inácio Lula da Silva described the Tropical Forest Forever Facility (TFFF) as an “unprecedented initiative”, highlighting the leading role being played by governments from the Global South.

Continue reading on Sustainble Investor.

Trump is skipping the UN’s climate conference. Some New Englanders are filling the void.

Ludmila Rattis sits on a panel, speaking into a microphone while the others on the panel, and the moderator behind the podium, look at her and listen

As local climate leaders head to the United Nations annual global climate talks — this year, in Belém, Brazil — it’s hard not to think about 2017.

That’s the last time that the talks were held during the first year of a Trump administration. Back then, less than six months into his first presidency, President Trump made his message clear: Washington was not interested in international cooperation to tackle the climate crisis.

Then, as now, representatives from states, cities, nonprofits, and corporations flocked to the conference to try to send their own message: “There’s more to the US than what is coming out of Washington,” said Lou Leonard, who is now dean of Clark University’s School of Climate, Environment and Society in Worcester.

Read more on The Boston Globe.

Alaska permafrost put at risk by climate change

Researchers are racing to study how fast permafrost is transitioning from carbon sink to source of emissions, with the climate in the balance.

Collapsing permafrost thaw field

On a blustery day in August, a team of five scientists watched with perverse fascination as saltwater from the Arctic Ocean lapped over the tundra of Alaska’s Prudhoe Bay. They’d spent more than a year studying the phenomenon that’s increasingly common as land ice melts, but had never witnessed it firsthand.

Read more on Bloomberg.