Oceans cover 70% of Earth surface. 97% of Earth water is salt water.</li></li></ul><li>Global Warming. <br />Global Warming:<br /> <br />Global warming is increase in the Earth average temperature due to certain environmental reasons and that is causing changes in earthen climate.<br />
Global Warming. <br />Major Factors contributing Global Warming:<br /><ul><li> Burning of fossil fuels like Gas, Oil, Coal etc.
Cutting down of trees and removal of other vegetation.
Depletion of Ozone layer in the upper Earth Atmosphere.
Uncontrolled emissions from factories.</li></li></ul><li>Global Warming. <br />Results of Global Warming:<br /><ul><li>Green house effect that entraps IR radiations in the earthen atmosphere due to certain gases - mainly CO2.
Raising of the Sea Level (1.8mm every year noticed)
Increase of average earthen temperature (01 deg C in last century – increase to 02 deg C may result in heavy habitat damage)
Habitat Damage (if the current trend of global warming continues, 10% of all species will be lost by 2050)
Melting of glaciers (Glaciers are major stock of sweet water and have global temperature balancing role)</li></li></ul><li>Global Warming. <br /><ul><li>Increase in water vapour in the atmosphere (water vapour itself is a greenhouse gas)
Outbreak of certain diseases like Malaria, dengue and Cancer. </li></li></ul><li>Spreading disease<br />Coral reef bleaching<br />Heat waves and periods of unusually warm weather<br />Downpours, heavy snowfalls, and flooding<br />Glaciers melting<br />Earlier spring arrival<br />Plant and animal range shifts and population declines<br />Sea level rise and coastal flooding<br />Arctic and Antarctic warming<br />Droughts and fires<br />Global Warming. <br />
Have control on population of livestock as they are major source of generating methane – a dangerous greenhouse gas. </li></li></ul><li>Global Warming. <br /><ul><li>Stop factories emissions as far as possible.