AP BIOLOGY

Detailed explanation-1: -Human activities, such as burning fossil fuels and destroying rainforests, have an increasing influence on the climate and the Earth’s temperature. This adds huge quantities of greenhouse gases to those naturally present in the atmosphere, increasing the greenhouse effect and global warming.

Detailed explanation-2: -Since the Industrial Revolution, human activities have released large amounts of carbon dioxide and other greenhouse gases into the atmosphere, which has changed the earth’s climate. Natural processes, such as changes in the sun’s energy and volcanic eruptions, also affect the earth’s climate.

Detailed explanation-3: -She says the origin of all that global warming pollution is clear. “We can tell that that’s coming from fossil fuels by studying the composition and chemical signature of that gas in the atmosphere, ” she says. So scientists are convinced by the evidence: Today’s global warming is human-caused.