Earths inner core is solid, 'J waves' suggest

A clearer path to clean air in China

Polluted city neighborhoods are bad news for asthmatic children

Biodiversity can also destabilize ecosystems

Arctic greening thaws permafrost, boosts runoff

Eliminating emissions in India and China could add years to people's lives

Wind farms and reducing hurricane precipitation

Dandelion seeds reveal newly discovered form of natural flight

Arctic ice sets speed limit for major ocean current

Substantial changes in air pollution across China during 2015 to 2017