Human-induced climate change is caused by both natural factors like volcanic eruptions as well as human activities such as burning fossil fuels and deforestation. Burning coal, oil and gas releases greenhouse gases like carbon dioxide into the atmosphere, trapping heat and leading to global warming. Deforestation removes forests that absorb carbon dioxide from the air. Effects of climate change include rising sea levels, more extreme weather, and declining crop yields. Scientists use models to project future climate change under different emissions scenarios. Case studies show impacts on areas like wildlife habitats from activities like mining. Responding to climate change risks is important to save the future.