Glaciers in Yosemite and Africa will disappear by 2050, U.N. warns
Even if global warming is limited to just 1.5 degrees Celsius, which now seems unlikely, all glaciers in Yosemite National Park and in Africa will be lost.
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.