My presentation is about global warming witch is a huge problem for our society. We as human expect a lot from nature ,but are we giving the same thing back ? The answer is yes,but we are giving it polluted and changed. For example nature is giving us air , but we are giving him back pollution. The forests  that helps us a lot in every way are being destructed. In order to make our world we are destroying world’s family, which includes animals,birds and insects .One of the problems of global warming is deforestation. One cause of deforestation is the use of forests in a wrong way.In order to save wood and other products, we are chopping the forests to have not as much important things as we need. Forests are necessary , they clean the air,they act as natural filters remove and store carbon dioxide . Because of that deforestation releases large amounts of carbon .

Ice melting is a reason of global warming too.Increase in sea levels is the result of melting of two massive ice sheets in Antarctica and Greenland as researched by scientists. Many nations around the world will experience the effects of rising sea levels,which could displace millions of people. The Maldives a country is already looking for a new home due to rising sea levels. Majority of Americans living in coastal states ,are facing large impacts due to global warming .Seawater expands ,takes more space in the ocean and causes a surplus rise in water level and also the melting of ice over land ,which then adds water to the ocean. Some of the sea lions,sea urchins,kelp beds,and fish populations,appears  to have extinct due to loss of plankton ,decrease in populations of sea lions ,leading orcas to eat too many sea otters ,leading to urchin explosions ,leading to loss of various fish populations. Water vapor is increasing in the atmosphere due to carbon dioxide –induces warming.Two-thirds of the heat trapped by greenhouse gases in contains in water vapor ,and as the average temperature on the planet to raises ,the amount of water vapor rises in turn,leading to untimely rainfall which may further cause other natural calamities such as floods. Sunspots are dark patches on sun’s surface that block hot solar plasma. Surrounding sunspots are bright patches known as facule . These patches give off greater than normal radiation ,and they are more powerful than the darker,cooler patches.This means that the total average energy over a 30 day solar rotation increases,which gives way too many other after effects. Each time  a fossil fuel burn ,carbon dioxide level in the atmosphere increase .Auto mobiles ,carbon emissions from the burning of gasoline to power cars ,trucks , and other methods of transportation. Electricity generation requires ,coal  is the largest producer of carbon dioxide emissions. Counties across he world want to switch to nuclear power plants. Mining oil ,coal and other mineral products underlying in deep beds allow methane,a greenhouse gas, to escape from the Earth. Disturbing the soil,stored gases make their way into the environment.