List four each of the following:causes of global warming, effects of the global warming on the environment, ways by which global warming can be reduced?
Answers
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Global warming is the unusually rapid increase in Earth’s average surface temperature over the past century primarily due to the greenhouse gases released by people burning fossil fuels.
Earth has experienced climate change in the past without help from humanity. But the current climatic warming is occurring much more rapidly than past warming events.
In Earth’s history before the Industrial Revolution, Earth’s climate changed due to natural causes unrelated to human activity. These natural causes are still in play today, but their influence is too small or they occur too slowly to explain the rapid warming seen in recent decades.
The impact of global warming is far greater than just increasing temperatures. Warming modifies rainfall patterns, amplifies coastal erosion, lengthens the growing season in some regions, melts ice caps and glaciers, and alters the ranges of some infectious diseases. Some of these changes are already occurring.
Models predict that as the world consumes ever more fossil fuel, greenhouse gas concentrations will continue to rise, and Earth’s average surface temperature will rise with them. Based on plausible emission scenarios, average surface temperatures could rise between 2°C and 6°C by the end of the 21st century. Some of this warming will occur even if future greenhouse gas emissions are reduced, because the Earth system has not yet fully adjusted to environmental changes we have already made.
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Answer:
Global warming is the phenomenon of the increase in the temperature of the atmosphere due to the presence of excessive green house gases. Global warming will result in melting of the polar ice caps and raise the ocean level which will submerge islands and coastal areas. It will cause extreme climatic changes. Some method to reduce global warming are:
By planting more trees and protecting our trees, forests and wildlife. This will reduce the amount of the harmful carbondioxide gas in the atmosphere and reduce global warming.
By stopping the use of plastic bags and other non-biodegradable plastic products.
By reducing the burning of fossil fuels like coal and petroleum products. The smoke emissions due to burning of fossil accelerate global warming and deplete the ozone layer which protects us from the harmful effects of the ultraviolet rays (UV rays) of the Sun.
By reducing the use of products like refrigerators and air conditioners which release CFC gas.
By gaining knowledge and using re-cycling method to reduce wastes and pollution of land, water and air.
By proper treatment of industrial waste before they are dumped.
By shifting to renewable energy, electric and solar energy.
By reducing exhaust emissions from motor vehicles, power plants and industries. The increasing pollutants in the air results in serious health problems. They also cause acid rains.
By closing down industries and manufacturers which are blatantly polluting air and water by hazardous industrial emissions and dumping wastes in our water sources.