Parts of Greenland now hotter than at any time in the last 1,000 years, scientists say
New research in the northern part of Greenland finds temperatures are already 1.5C warmer than in the 20th century.
Related Knowledge Center: Climate science
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.