China tests a Stirling engine in orbit

The China National Space Agency (CNSA) has made considerable progress in recent years with the development of its Long March 5 (CZ-5) rocket and the completion of its Tiangong-3 space station. The agency also turned heads ...

Methane big part of 'alarming' rise in planet-warming gases

Methane in the atmosphere had its fourth-highest annual increase in 2022, the National Oceanic and Atmospheric Administration reported, part of an overall rise in planet-warming greenhouse gases that the agency called "alarming."

UN 'survival guide' report an urgent warning on climate

The world will cross the key 1.5-degree Celsius global warming limit in about a decade, the UN said Monday, warning that devastating impacts of climate change are hitting faster than expected.

Alaska oil project approval adds yet another climate concern

The Biden administration's approval of a massive oil development in northern Alaska commits the U.S. to yet another decadeslong crude project even as scientists urgently warn that only a halt to more fossil fuel emissions ...

Carbon dioxide emissions reached a record high in 2022

Communities around the world emitted more carbon dioxide in 2022 than in any other year on records dating to 1900, a result of air travel rebounding from the pandemic and more cities turning to coal as a low-cost source of ...

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