AP BIOLOGY

Detailed explanation-1: -Since the start of the Industrial Revolution, in about 1750, human activities such as burning fossil fuels, including coal and oil, have increased greenhouse gas concentrations in our atmosphere.

Detailed explanation-2: -Carbon dioxide in the atmosphere is now reaching levels 50% higher than before the industrial revolution. Research shows that for several days in February and March 2021, atmospheric CO2 levels exceeded 417 parts per million (ppm). Pre-industrial levels were about 278ppm.

Detailed explanation-3: -Prior to the Industrial Revolution, CO2 levels were consistently around 280 ppm for almost 6, 000 years of human civilization. Since then, humans have generated an estimated 1.5 trillion tons of CO2 pollution, much of which will continue to warm the atmosphere for thousands of years.

Detailed explanation-4: -The history of the scientific discovery of climate change began in the early 19th century when ice ages and other natural changes in paleoclimate were first suspected and the natural greenhouse effect was first identified.

Detailed explanation-5: -The Industrial Revolution and Coal They argued for more efficient use of the coal that was available.