Eyes in the sky could help cities get on track to decrease emissions of the potent greenhouse gas—and monitor whether their efforts are working.
carbon emissions
Posted inResearch & Developments
Temperatures in Nearly All Major U.S. Cities Have Warmed Since First Earth Day
After more than half a century of Earth Days, one planetary challenge—climate change—threatens our planet more than ever.
In 1970, the year Sen. Gaylord Nelson, D-Wisc., organized the first Earth Day events, the annual average concentration of carbon dioxide in the atmosphere was 326 parts per million. In 2025, it was 31% higher, at 427 parts per million.
Posted inNews
Alaska’s Wildfires Heat the Planet, but Canada’s Cool It
Using 2 decades of satellite data, researchers learned that wildfires in North America don’t follow the same script: In western Canada, snow reflectivity drives a cooling effect, whereas in Alaska, permafrost burning leads to net warming.
Posted inNews
With the Ocean Included, the Social Cost of Carbon Doubles
A new calculation includes ocean ecosystems when assessing the monetary impact of climate change.
Posted inResearch Spotlights
Drought Drove the Amazon’s 2023 Switch to a Carbon Source
The change was caused by thirsty vegetation taking up less carbon than normal, not by the year’s extended fire season, new research shows.
Posted inNews
Restored Peatlands Could Become Carbon Sinks Within Decades
That’s much faster than what most scientists thought.
Posted inResearch & Developments
The Endangerment Finding Is Lost
Tomorrow, the EPA will revoke the 2009 Endangerment Finding, finalizing a July proposal to do so, Press Secretary Karoline Leavitt said in a 10 February announcement.
Posted inReport
The State of the Science 1 Year On: Climate Change and Energy
Trump’s first year in office has reversed many climate policy decisions and aggressively advanced fossil fuel interests.
Posted inResearch & Developments
Trump Pulls United States Out of International Climate Efforts “Contrary” to National Interests
In an executive order issued on 7 January, the White House ordered the country’s withdrawal from 66 international agreements determined to be “contrary to the interests of the United States,” including two global efforts to combat climate change: the United Nations Framework Convention on Climate Change (UNFCCC) and the Intergovernmental Panel on Climate Change (IPCC).
Posted inResearch & Developments
Trump Proposes Weakening Fuel Economy Rules for Vehicles
At the White House today, President Donald Trump announced his administration would “reset” vehicle fuel economy standards. Trump said the administration plans to revoke tightened standards, also known as Corporate Average Fuel Economy (CAFE) standards, set by President Joe Biden in 2024.