Global warming is the long term heating of earth’s environment due to the trapping of Green-house gases which is released by burning of fossils and human activities. It is observed since the pre-industrial period i.e between 1850 and 1900.
Since the industrial level the global temperature has increased by more than 1 degree Celsius. Between 1880 and 1980 it is increased on average by 0.07 degree Celsius per decade. However, the rate of increase get doubled from 1981 to 1991 by 0.18 degree Celsius. And it still keep on increasing, now the climate scientists have concluded that we need to decrease the global warming by 1.5 degree Celsius by 2040 or the condition get worst for living organisms.
Global warming occurs when greenhouse gases like carbon dioxide, methane, nitrous oxide, water vapor and synthetic fluorinated gases get accumulated in the earth’s atmosphere and started absorbing sunlight and solar radiation that bounce off from the earth’s surface. Usually the radiation would escape into space but these pollutants trap the heat and lead to the planet warmer.
The accumulation of Green-house gases in the earth atmosphere is mainly by the human activity like;
Plants and trees are always an important part of the earth system. They help in maintaining climate change by absorbing carbon dioxide from the surrounding and releasing oxygen. But humans are cutting down the trees for the development of infrastructure, making field for agriculture, or for selling woods. When vegetation is removed then the store carbon is released into the surrounding which contribute to the global warming.
FACT : There is more carbon dioxide in the atmosphere today than at any point in the last 800,000 years
2.Production of electricity
To produce electricity fossil fuel is burned like coal it releases carbon dioxide in their surrounding which contribute in the global warming. Electricity generation is the main cause for burning fossils as mainly our electricity comes from fossils. Others sources are renewable energy sources like hydro, solar, wind. Developed countries releases carbon dioxide more than the other countries.
FACT : With the start of industry in the 1700’s, humans began emitting more fossil fuels from coal, oil, and gas to run our cars, trucks, and factories.
Agriculture practices which uses organic and commercial fertilizers both releases nitrous oxide and methane which are powerful green house gases. These gases again contribute to the global warming.
FACT : Heat waves caused by global warming present greater risk of heat-related illness and death, most frequently among people who have diabetes who are elderly or are very young.
Since the industrial revolution, the fossil fuels are burning which releases carbon dioxide. Fossils are burned in industrial processes and transportation.
FACT : India produces 25 percent of the carbon dioxide pollution from fossil-fuel burning — by far the largest share of any country.
- Climate change – due to global warming there is increment of temperature by 1.5 degree Celsius compared to pre industrial time. The summers days are now more hotter and winters are less colder. Globally the hottest year is 2020 in record earlier 2016 was the hottest year.
- Oceans are warming and acidifying – the oceans are becoming warm and acidic as it absorbed most of the heat and carbon dioxide. Due to ocean acidity the life of underwater species are in danger specially the creature having calcium carbonate shells and skeletons.
- Rising sea levels – increased in ocean temperature lead to melting of glaciers and ice all over the world. Melted ice lead to increment in water of oceans which threatened the life of coastal cities and low height islands.
- Health of human being – increase in severe and frequent heat waves may lead to serious illness and also death. As the temperature increases the habitat changes which can cause to death of the population which are not able to adapt.
- Extinction of species – there is a high risk of extinction of species because of the climate change. As its not possible for every species to adapt quickly enough for their survival.
- By using renewable energies like solar, hydro, wind to reduce the use of fossil fuels
- By reducing our consumption of energy and water by using efficient devices like LED
- By supporting sustainable development like in infrastructure, transportation, industries.
- By reforestation and forest management
- By imposing stronger rules for supporting our environment
- By preventing deforestation