Question

Explain why the greenhouse effect is not entirely a man-made phenomenon.
in small pargarph

Answer 1

The greenhouse effect itself is a natural process: gases like water vapor, carbon dioxide, methane and clouds trap some of the Sun’s heat in Earth’s atmosphere, keeping the planet warm enough for life. These gases and their flows have existed for millions of years through natural sources and sinks — volcanic eruptions, respiration and decay, ocean–atmosphere exchanges, and biological activity — so the baseline greenhouse effect is not man-made. Human activities, however, have added large amounts of greenhouse gases and altered land use, strengthening that natural effect and driving the recent rapid warming.