GEOLOGY

Detailed explanation-1: -Most Americans recognize climate change, but some are still unsure about its causes. Tens of thousands of scientists in more than a hundred nations have amassed an overwhelming amount of evidence pointing to a clear conclusion: Humans are the main cause of climate change.

Detailed explanation-2: -Climate change is caused by humans. Scientists have concluded that most of the observed warming is very likely due to the burning of coal, oil, and gas.

Detailed explanation-3: -Though China is responsible for the largest percentage of current emissions, rich industrialized countries are still responsible for more than one third. By comparison, Africa’s current emissions are less than 4 percent of the global total.

Detailed explanation-4: -The primary cause of climate change is human activities – like driving cars, creating electricity, and cutting down forests – not natural changes in the climate. These human activities release gases into the atmosphere called greenhouse gases, which slowly warm the planet, creating climate change.