Human activity harms the ecosystem, air, water, and land. Pollution and environmental damage caused by people scare us all. Looking at the big picture reveals several patterns. Our atmosphere is polluted globally and locally. The most populous northern hemisphere is losing the protective ozone layer twice as fast as scientists projected. As greenhouse gases pile up in the atmosphere, weather patterns will change dramatically, causing global warming. The destruction of the ozone layer and further warming of the earth's surface threaten cancerous and tropical diseases, ocean food chain disruption, rising sea levels, island submersion, melting of small land-based glaciers, flooding in low-lying coastal areas, loss of harvest, etc.
Keywords: Environment, Pollution, Causes, global warming