| How Harmfull is it? |
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The atmospheric concentrations of several greenhouse gases are rising as a result of human activities on earth. Carbon Dioxide, one of the most important industrial gases today, is released in the atmosphere largely by burning of fossil fuels like coal, natural gas and oil. Its concentration in the atmosphere is known have increased by 30% over the past centuries. Like CO2 other greenhouse gases such as methane, nitrous oxide have been increasing as well.
With the pace with which human activity on earth continues to grow climate scientists believe that the global average temperature will continue to rise. According to a research report released by IPCC (Intergovernmental Panel on Climate Change) by the end of the next century earth may warm by 1.8ºF to 6.3ºF (1°-3.5°C) easily making it warmer than any time since the evolution of humans and adding to that and all of the 10 warmest years on record have occurred in the last 15 years. The record year for climate so far has been 1998, when melting snow killed 4,000 people in China, 1,400 in India and 1,00 in Pakistan. Typhoons killed 500 in the Philippines, and monsoons killed 1,300 in Bangladesh. Last year torrential rain in Venezuela caused floods that killed 30,000 people, and this year thousands have died in flooding in Mozambique. Global Warming may have already killed 100,000 people in the past three years and threatens to lead to mass migration, disease, poverty and even war. Famous Historian David Keys says "There have always been severe weather events, but the number and severity has increased in recent years." He adds that exceptionally severe weather events have claimed between 50,000 and 100,000 lives since 1997. In addition, up to 300 million people have been displaced and made homeless.
18 Nov
2006 |
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