Global warming has the greatest impact on the climate. Heating raises sea levels and destroys flora and fauna that live by the sea. Water heating affects the death of plant and animal species that make the water too hot. Dead animals release methane during decomposition. By melting glaciers, living space for many plants and animals is disappearing. Increasing greenhouse gases lead to global warming and climate change. Deforestation in addition to destroying biodiversity affects the extinction of many plant and animal species and reduced oxygen emissions.