Friday, June 5, 2009

GLOBAL WARMING




Global warming means increase in the average temperature of Earth’s surface air and oceans. Global warming is basically increasing greenhouse gas concentrations resulting from human activity such as fossil fuel burning and deforestation. Due to Global Warming Global surface temperature increased 0.74 ± 0.18 °C (1.33 ± 0.32 °F) during the last century. According to IPCC natural phenomena such as solar variation and volcanoes produced most of the Global warming from pre-industrial times to 1950. Global warming increases with the increase in human’s carbon foot print. Global warming is a calculated and agreed upon phenomena and many are considering Global Warming as a bigger threat to man kind then a 3rd world war. Accusers accuse irresponsible human developmental and capitalism for Global warming. Honesty demands self accusation for Global warming as every action taken by man kind has a consequence and can contribute towards warming. ECO Watch dogs are blaming Global warming on major industrialized countries. Owing to Global warming an IPCC report indicate that global surface temperature will probably rise a further 1.1 to 6.4 °C (2.0 to 11.5 °F) during the twenty-first century. Increase in Global Warming will cause sea levels to rise and will change the amount and pattern of precipitation, probably including expansion of subtropical deserts, as Global warming is causing continuous retreat of glaciers, permafrost and sea ice is expected, with the Arctic region being particularly affected. Most studies about Global Warming focus on the period up to 2100. However, Global warming is expected to continue beyond 2100 even if emissions stop, because of the large heat capacity of the oceans and the long lifetime of carbon dioxide in the atmosphere. Global Warming’s other likely effects include shrinkage of the Amazon rainforest and Boreal forests. Global Warming is being blamed for sudden increases in the intensity of extreme weather events such as floods, tsunamis and acidic rains. Extinctions of many species and changes in agricultural yields are credited on Global Warming too. Global warming continues to be a hot Political and public agenda.

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