Global Warming, Its Effects, Matigation, Future Pridictions

Global warming

Means a clear and continuously increase in the World’s temperature due to boost in gases (greenhouse gases) and other pollutants. Because according to information from 1971, 90% of the warming occurred in the ocean. In spite the ocean play an important role in energy store. The word global warming is also used to submit to increases in normal temperature of the air and ocean .If we looking from the past the earth temperature rises from early 20th century and rises about 0.8 0C (1.50F). The temperature is rising consecutively in last three decades starting 1850.

According to scientific study the global warming has been increasing. In its fourth assessment (AR4 2007) of the relevant scientific literature, the intergovernmental panel on climate change (IPCC) accounted that most of the global warming was being caused due to increasing absorption of greenhouse gases produced due to anthropogenic activities. In 2013 according to IPCC affirmed that largest things that causes global warming is carbon dioxide (CO2) emissions on or after fossil fuel combustion, cement production, and land use alterations for instance deforestation.

Forth assessment report (AR4) by the intergovernmental panel on climate change (IPCC) has sum up a climate change model in 2007. They point out that during 21st century the temperature is likely to rise up to a more 1.1 °C to 2.9 °C (2.0 to 5.2 °F) for their lowest emission scenario and 2.4 to 6.4 °C (4.3 to 11.5 °F) for their highest.

Some external forcing can “force” the climate in the direction towards increase in temperature or decrease in temperature. Instances of external forces such as changes in atmospheric composition (e.g., increased attentions of greenhouse gases), solar luminosity, volcanic eruptions, and variation in earth,s orbit around the Sun. The 20th century Instrumental temperature record illustrates unexpected increase in global temperatures.

Greenhouse gases

It is the process in which absorption and emission of infrared radiation by gases in a planet's atmosphere warm its lower atmosphere and surface. This is proposed by Joseph fourier in 1824, discovered in 1860 by John Tyndall, was first investigated quantitatively by Svante Arrhenius in 1896, and was developed in the 1930s through 1960s by Guy stewart Callender.

Here are some greenhouse gases such as water vapours, which can cause about 35–69% of the greenhouse effect; cabon dioxide CO2, which causes 9–27%; methane (CH4), which causes 4–9%; and ozone (O3), which causes 3–7%. Clouds can also affect the radiation balance through cloud forcing like to greenhouse gases.

After the industrial revolution the amount of GHG, s increased in the atmosphere. The CO2, methane, and ozone increased in the troposphere leading to global warming. According to work published in 2007, the quantity of CO2 and methane have increased by 36% and 148% respectively since 1750.

Mitigation

The dropping of quantity in future climate change called mitigation of climate change. IPCC has describe mitigation as activities that decrease greenhouse gas (GHG) production, or increase the absorption ability of soil to absorb the carbon and other GHGs from the atmosphere. The researches and studies specify that the future reduction in emission of GHGs is important and we have to take serious action against the industries and we should apply carbon tax on them. We should use those resources which are renewable and which are less harmful for human, for the environment and for the biodiversity. Such as solar energy, wind energy and hydro energy etc. Climate mitigation also includes acts to enhance natural sinks, such as Afforestation.

If we want to improve the environment then we have adopt policies that will limit the greenhouse emission. But we have to think about our environment before the conditions become worse or irreplaceable. Energy-related carbon-dioxide (CO2) emissions in 2010 were the highest in history, breaking the prior record set in 2008.

Conclusion

The researches are studies indicate that the temperature of the earth is increasing because of natural and anthropogenic activities. If we don’t care about our earth then who will care? So the nature provides its services for us but us trying to deplete the services that are providing by nature. So we have to think and stop such activities which damage our earth or nature.