Global warming essay in english wikipedia
Temperature record of the past years A graph of temperatures over the past two thousand years from different proxy reconstructions.
Climate change has happened many times over the history of the Earthincluding the coming and going of ice ages. For more recent centuries, we have more details. Since the s, people have recorded the daily temperature.
This makes source planet become warmer, similar to the way it makes a greenhouse become warmer. Global images of Earth from Galileo: Greenhouse effect Fossil fuel related CO2 emissions compared to five IPCC scenarios. Energy conservation is used to burn less fossil fuel. The atmosphere protects life on Earth by absorbing ultraviolet solar radiationwarming the surface through heat retention greenhouse effectand reducing temperature extremes between day and night the diurnal temperature variation. Great horned owls make their home among juniper trees in the Rockwell Natural Area.
By aboutthere were enough places measuring temperature so that scientists could know the global average temperature. From tothe temperature got warmer. From tothe temperature got slightly cooler. From wiikipedia today, the average temperature for the world has increased by about 0. Beforethere were not enough temperature measurements for us to know how warm or cold it was. Click use proxy measurements to try to figure out past temperatures before there were thermometers.
This means measuring things that change when it gets colder or warmer. One way is to cut into a tree and measure how far apart the growth rings are.
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Trees that live a long time can give us an idea of how temperature and rain changed while it was alive. For most of the past years the temperature didn't change much. Other proxy measurements like the temperature measured in deep holes mostly agree with the tree rings. Tree rings and bore holes can only help scientists work out the temperature until about years ago.
Global warming became more widely popular after when NASA climate scientist James Hansen used the term in a testimony to Congress. These and the other cities have either started trying to deal with rising sea level and related storm surge essqy, or are discussing this, according to reliable sources. The first person to predict that carbon dioxide from the burning of fossil fuels and other combustion processes could cause global warming was Svante Arrhenius. Greenhouse effect Fossil fuel related CO2 emissions compared to five Global warming essay in english wikipedia scenarios. Ice ages are prominent examples. Other proxy measurements like the temperature measured in deep holes mostly agree with the tree rings. Renewable Energy eBooks Definition for Global Warming A definition for global warming:
Ice cores are also used to find out the temperature back to about half a million global warming essay in english wikipedia ago. Greenhouse effect Fossil fuel related CO2 emissions compared to five IPCC scenarios. The dips are related to global recessions. Coal -burning power plants, car exhausts, factory smokestacksand other man-made waste gas vents give off about 23 billion tons of carbon dioxide and other greenhouse gases into the Earth's atmosphere each year.
About three-quarters of the CO2 that people have put in the air during the past 20 years are due to burning fossil fuel like coal or oil. The rest mostly comes from changes in how land is used, like cutting down trees. This is called the year sunspot cycle. The change is so small that scientists can barely measure how it affects the temperature of the Earth. If the sun was causing the Earth globxl warm up, it would warm both the surface and high up in the englisj.
But the air in the upper stratosphere is actually getting colder, so scientists don't think changes in the sun have much effect. Dust and dirt[ change change source ] Dust and dirt in the air come from natural sources such more info volcanos  erosion and meteoric dust. People also add to it. Some of this dirt falls out within a few hours.
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Some is aerosolso small that it could stay in the air for years. Some responses[ change change source ] Some people try to stop global warming, usually by burning less fossil fuel. Many people have tried to get english wikipedia to emit less greenhouse gases. The Kyoto Protocol was signed in It was meant to reduce the amount of greenhouse gases in the atmosphere to below their levels in However, carbon dioxide levels have continued to rise.
Energy conservation is used to burn less fossil fuel. gllobal
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People can also use energy sources that don't burn fuel, or can prevent the carbon dioxide from getting out. People can also change how they live because of any changes that global warming will bring. For example, they can go to places where the weather is better, or build walls around cities to keep flood water out. Like the preventive measures, these things cost money, and rich people and rich countries will be able to change more easily than the poor. Geoengineering is also seen essaj some as one climate change mitigation response.
This is why more greenhouse gases cause global warming. Beforethere were not enough temperature measurements for us to know how warm or cold it was. Since carbon dioxide is a greenhouse gas, it has caused the ezsay to warm over the past years. It was meant to reduce the amount of greenhouse gases in the atmosphere to below their levels in Ice cores are also used to find out the temperature back to about half a million years ago. Renewable Energy eBooks Definition for Global Warming A definition for global warming:
For example, a process using nanotechnology has been found to remove carbon dioxide from the air to create ethanol. Broecker's choice of words was new and represented a significant recognition that the esxay was warming; previously the phrasing used by scientists was "inadvertent climate modification," because while it was recognized humans could change the climate, no one was sure which direction it was going.
The National Academy of Sciences first used global warming in a paper called the Charney Report, it said: Global warming became more widely popular after when NASA climate global warming essay in english wikipedia James Hansen used the term in a testimony to Congress. Effects of global warming on sea levels[ change see more source ] Global warming means that Antarctica and Greenland ice sheets are melting and the oceans are expanding.
Recent climate change would still cause a 6-meter feet sea-level rise even if greenhouse gas emissions were reduced in per a scientific paper in Science. These and the other cities have either started trying to deal with rising sea global warming essay in english wikipedia and related storm surge "global warming essay in english glibal or are discussing this, according to reliable sources.