News
IPCC Report: UN Scientists Warn of 'Closing Window' to Ready for Hotter World
A new UN report says countries must do more to safeguard billions from floods, droughts and other “compounding” hazards.
Related Knowledge Center: Climate science
State of Play
What began as a theory in the 1890s — that industrial emissions of carbon dioxide could increase global temperatures — had progressed to a scientific fact a century later. Scientists across a range of disciplines are studying the impact of the still-growing concentration of carbon dioxide and other so-called “greenhouse gases” in the atmosphere as they call for industrial and governmental policies to slow, then halt, the warming of the planet.