A review study on effect of global warming over mankind

Abstract

The concentration of many greenhouse gases has risen throughout time. Human activity enhances the greenhouse gases impact mainly via emission of carbon dioxide, but human effects on other greenhouse gases is also significant. The continuous buildup of greenhouse gases promotes rising global warming. The recent IPCC (Intergovernmental Panel on Climate Change) 2007 shows that global average air temperature near Earth's surface rose 0.74±0.18°C in the last century and report concluded “most of the observed increase in globally averaged temperatures since mid-20th century is very likely due to the observed increase in the concentration of anthropogenic greenhouse gases. Global warming impacts many different aspects of life on Earth. Global warming impacts will include reductions in agricultural output, the continuing melting of glaciers and animal extinctions. New issues were progressively added to the list, ranging from the destruction of ecosystems to risks to human health. Experts in areas from forestry to finance, even national security experts, joined in to evaluate the spectrum of potential implications. The sad truth is that forecasting the effect of global warming is notoriously hard. It combines a wide variety of scientific disciplines together, including as oceanography, meteorology, and geology, although no one can agree on the precise effects for particular areas of the globe. All experts believe global warming will have many detrimental consequences on our planet and our way of life. The impact of global warming will have detrimental influence on the climatic conditions and water supplies.