In the 1990s, scientists working on climate change began to conclude that gases released by human activity, principally CO2, are producing

Question

Quizplus · Accepted Answer

Scientists in the 1990s began to conclude that human activity, particularly the burning of fossil fuels, was releasing greenhouse gases like CO2 into the atmosphere. These gases trap heat and lead to a warming of the planet, similar to how a greenhouse traps heat for plants to grow. This phenomenon became known as the "greenhouse effect."

In the 1990s, Scientists Working on Climate Change Began to Conclude