Global Warming

Posted on October 1, 2007 in About Global Warming

What it involves?
Global warming means increase in the average temperature of the Earth’s near-surface air and oceans in recent decades and its projected continuation. The global average air temperature measured near the Earth’s surface rose during the last 100 years and this has been due to the increase in anthropogenic greenhouse concentration via the greenhouse effect. Natural phenomena,like solar variation  combined with volcanoes
appear to have less warming effect since pre-industrial times to 1950 and a lesser cooling effect from 1950 onwards. The global surface temperatures are likely to increase  between 1990 and 2100.

How it affects us?

Endangering species in many ways and even we as human beings are not spared. Weather conditions are changing fast and summers are either becoming too intense and long .Weather is carving out its own niche .

A global environmental disaster needs to be prevented and one needs to face upto the challenges of a warmer planet. The release of carbon dioxide and other heat-trapping gases from smokesstacks, tailpipes and burning forests has led to the increase in average surface temperature. of the earth by more than 1 degree Fahrenheit since 1900.  Large amounts of carbon dioxide that have been released due to growing industrialization have led to the earth becoming more warmer. The greenhouse effect has enabled life  to form.  Efforts are on to regulate greenhouse gases. The temperature will continue to increase if gases like carbon dioxide and methane allow sunlight to reach earth. By 2100, sea levels are likely to rise between 7 to 23 inches and the changes to be so.

Global Scenario
The maximum increase in greenhouse gases  emissions  is in the United States, the world’s biggest source of greenhouse gases. Emissions in the European Union and Canada also rose while Japan’s dipped.Most industrialised nations except the United States and Australia have ratified Kyoto, which obliges an overall cut in emissions of at least 5.2 percent below 1990 levels by 2008-12 with a shift to cleaner energies such as wind and solar power.

Kyoto is the first step by rich nations to slow global warming that many scientists say could spur more heatwaves, droughts, floods, more powerful storms and swamp coastal areas by melting ice sheets in Antarctica and Greeland.

Other big changes are being monitored in the tropics too. Data on tree growth , tropical air temperatures and CO2 readings collected over 16 years indicate that a warming climate may cuase the tropical foresats to emanate more carbon dioxide than they take up.


How to control it ?

Global warming a force to reckon with in the coming years! A challenge to be faced!


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