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1、Global warming is a natural phenomenon. Because people burning fossil fuel, such as oil, coal, or deforestation and the burning will produce large amounts of carbon dioxide, the greenhouse gas, these greenhouse gases on the radiation from the sun visible light has high permeability, and the long wave radiation emitted from the earth with a highly absorbent, can strongly absorb infrared radiation on the ground, resulting in the earth's temperature to rise, the greenhouse effect. And when the greenhouse effect will continue to accumulate, resulting in gas absorption and emission of energy balance, energy accumulation in the earth atmosphere system, resulting in rising temperature, resulting in the phenomenon of global warming. Global warming will make the global distribution of precipitation, glaciers and permafrost melting, sea level rise, not only endanger the balance of natural ecosystems, but also threaten the survival of mankind.

2、全球氣候變暖是一種自然現(xiàn)象。由于人們焚燒石燃料，如石油，煤炭等，或砍伐森林并將其焚燒時(shí)會產(chǎn)生大量的二氧化碳，即溫室氣體，這些溫室氣體對來自太陽輻射的可見光具有高度透過性，而對地球發(fā)射出來的長波輻射具有高度吸收性，能強(qiáng)烈吸收地面輻射中的紅外線，導(dǎo)致地球溫度上升，即溫室效應(yīng)。而當(dāng)溫室效應(yīng)不斷積累，導(dǎo)致地氣系統(tǒng)吸收與發(fā)射的能量不平衡，能量不斷在地氣系統(tǒng)累積，從而導(dǎo)致溫度上升，造成全球氣候變暖這一現(xiàn)象。全球變暖會使全球降水量重新分配、冰川和凍土消融、海平面上升等，不僅危害自然生態(tài)系統(tǒng)的平衡，還威脅人類的生存。