Why and how is global warming happening?

Answer 1

How Is global warming happening?

Well, we are emitting so much greenhouse gas that into the atmosphere that captures the Sun's heat. People are trying to prevent global warning by sometimes riding bikes somewhere or just walking, not using cars.

Why Is global warning happening?

Like I said before, the cars release carbon dioxide into the air, causing more and more of the Sun's heat to stay on earth, making the Earth hotter. When the Earth is get hotter, more ice is melting, causing more water to cover land. I heard if 2% of the ice melts, many of the popular lands in the U.S.A. will be flooded.

Answer 2

When we talk about global warming, we usually refer to the increase in average global temperatures since the beginning of the Industrial Age. Climate scientists say that this results from increased levels of greenhouse gases, particularly carbon dioxide, and that human activities are a substantial cause of these increases. We are adding to the concentration of atmospheric carbon dioxide by burning fossil fuels, manufacturing cement and by deforestation.

Greenhouse gases cause global warming by allowing the sun's energy to pass through to the earth's surface as vivible light, but blocking the re-radiation of that energy from the earth's surface as infrared heat.