National Geographic : 2015 Nov
NORTH AMERICA SOUTH AMERICA ASIA AFRICA EUROPE ANTARCTICA AUSTRALIA BRAZIL UNITED STATES Svalbard (NORWAY) New York West Antarctica PACIFIC OCEAN PACIFIC OCEAN INDIAN OCEAN ARCTIC OCEAN ATLANTIC OCEAN A NTA R CTIC CIRCLE ARCTIC CIRCLE TROPIC OF CANCER TROPIC OF CAPRICORN EQUATOR CHINA TAIWAN explain why the warming has happened unevenly and fitfully, but not the warming trend itself, which has overwhelmed the cooling effect of the ash from volcanoes. It has coincided over the past half century with a surge in carbon emissions from our rapidly industrializing world. Finding a way to stop those emissions—and climate change—is the challenge for the next half century. Tune in November 1 to the Channel’s Explorer series as Science Guy Bill Nye looks at climate change.