Human activities, such as burning fossil fuels, have significantly increased greenhouse gases like CO2 in the atmosphere, leading to a rapid rise in Earth's temperature and severe climate change impacts on oceans, weather, food sources, and health. The greenhouse effect, caused by gases like water vapor and methane, traps heat in the atmosphere, intensifying extreme weather events, melting ice sheets, and shifting plant and animal habitats, but transitioning to renewable energy sources could help mitigate these effects.

Human activities, such as burning fossil fuels, have significantly increased greenhouse gases like carbon dioxide in the atmosphere, leading to the greenhouse effect. This phenomenon traps heat, warming the planet at an alarming rate.

Melting ice sheets like Greenland and Antarctica lead to rising sea levels, causing coastal flooding. Climate change results in extreme weather events, shifts in agricultural areas, diminished water supplies, and health risks from increased smog levels.