A hazard is acause which has the potential to harm environment. Man-made hazards have negative effect on the environment which in-turn effect the ecosystem by damaging the life-cycle. Man-made hazards are life threating. Releasing fossil fuel from vehicles, domestic consumption and industries pollute air, water and soil. Industrial emissions, deforestation, urbanization releasing greenhouse gases, causing global warming, delayed monsoons, rising sea levels and natural calamities.