Global warming is the increase in the average air temperature near Earth's surface and oceans since the mid-20th century and its projected continuation. Global surface temperature increased 0.74 ± 0.18 ° C (1.33 ± 0.32 ° F) between the beginning and end of the 20th century.The Intergovernmental Panel on Climate Change (IPCC) concludes that most of the observed temperature increase since the mid-20th century was caused by rising concentrations of greenhouse gases resulting from human activities like burning fossil fuels and deforestation.
Climate model projections summarized in the recent IPCC report suggests that global surface temperature will probably rise another 1.1 to 6.4 ° C (2.0 to 11.5 ° F) during the twenty-first century.The uncertainty in this estimate due to the use of models with different sensitivity to concentrations of greenhouse gases and the use of different estimates of future emissions of greenhouse gases. Some other uncertainties include how warming and related changes will vary by region throughout the world.
A rise in global temperature will lead to higher sea levels and alter the volume and pattern of precipitation, probably as an extension of permanent subtropical deserts.The retreating glaciers, permafrost and sea ice is expected to be the stronger warming in the Arctic. Other possible effects include increases in the intensity of extreme weather events, species extinction and changes in agricultural yields.
Global Warming Causes :
As mentioned, the main cause of global warming is the emission of greenhouse gases like carbon dioxide, methane, nitrous oxide, etc. in the atmosphere. Gasoline WarmingThe causing major source of carbon dioxide are power plants. These power plants emit large quantities of carbon dioxide from burning fossil fuels for electricity generation. Approximately twenty percent of carbon dioxide in the atmosphere comes from burning gasoline in car engines. This is true for most developed countries. The buildings, both commercial and residential buildings represent a major source of global warming pollution than cars and trucks.
Global warming is inspiring scientists to fight for Knowledge :
Researchers around the world are making predictions about the harmful effects of global warming and the connection of some of the events that have occurred in the pat few decades as global warming alarm. The effects of global warming is increasing the earth's average temperature. A rise in temperature on earth can beat a result of other changes in environmental conditions, including a rise in sea levels and change the size and pattern of precipitation.
A study in which marine life reacted significantly to changes in water temperature. It is expected that many species are extinct or extinct due to higher water temperatures, while several other species that prefer warmer waters will rise sharply. Perhaps the most disturbing changes that are expected to coral reefs are expected to die as an effect of global warming. Global warming will cause irreversible changes in the ecosystem and animal behavior.
Global Warming Projection :
Scientists have recently reported on the surprisingly rapid rise in emissions of carbon and methane emissions in the frozen tundra in Siberia starts to melt due to increased human reason in the temperature of the earth. Scientists tell us that the tundra in danger of concentration is an additional global warming pollution equal to the net amounts previously in Earth's atmosphere. Also, previously one of a team of researchers reported that in one year in Greenland saw 32 glacial earthquakes between 4.6 and 5.1 on the Richter scale. This is a worrying signs, and notes that a massive destabilization may now be on the road in the depths of the second largest accumulation of ice on the planet.
You can help fight global warming :
Many efforts have been made more nations to reduce the rate of global warming. One such effort is the Kyoto agreement, which has been made between nations to reduce emissions of various greenhouse gases. Also, many non-profit organizations working for the cause. Al Gore was among politicians across the U.S. to blow a warning about the dangers of global warming. There has been a significant acclaimed documentary "An Inconvenient Truth" and written a book that archives his advice that Earth is racing towards a future with great warmth. Al Gore, former U.S. Vice President has taken several measures to raise awareness about global warming. He warned people about the harmful effects of global warming and its resources.
Global Warming Skeptics :
Skeptics of global warming is of the view that global warming is now well and should not be stopped. There are several advantages of global warming in accordance with them. According to skeptics, global warming will increase humidity in tropical deserts. Even higher levels of carbon dioxide in the atmosphere by the growth of the plant shoot. As expected, because of global warming, rising sea levels. But this can easily be adapted. Another argument for global warming skeptics is that the earth has been warmer than today, as seen in its history. The idea is that global warming is nothing to fear as it only leads to a more natural environment in the past. Animals and plants such as good in these times of warm climate in the soil.
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