評論
打印
Global Warming
全球變暖
Global warming is the increase in the average temperature of the Earth's surface air and oceans.
全球變暖指的是地球大氣和海洋平均溫度的上升。
Climate change is any major change in measures of climate,such as temperature, rainfall and wind.
氣候變化是衡量如溫度、降雨量和風力等的重大改變。
Scientists have debated about global warming for years.
科學家一直在全球變暖這個話題上爭論不休。
Many have different opinions about the extent to which greenhouse gases are responsible for it.
許多人認為工廠，發電廠或機動車輛大量排放的溫室氣體（例如二氧化碳）是造成全球變暖的主要原因。
Greenhouse gases, such as carbon dioxide,are produced by factories, power stations and vehicles.
如二氧化碳等的溫室氣體是由工廠、發電站及車輛排放所導致。
They trap heat in the Earth's atmosphere.
這些氣體能阻止大氣層散熱。
Research shows the level of carbon dioxide gas in the Earth's atmosphere has increased by more than 30% in the last 250 years.
研究表明，在過去250年，大氣層二氧化碳濃度的增加超過了30%。
Carbon dioxide is produced by burning oil and coal.
二氧化碳是石油及煤燃燒生成的。
An increase in global temperatures has led to other problems.
全球變暖引發了其他問題:
Scientists have observed a rise in sea levels and a melting of ice in the Earth's Polar areas.
科學家已經觀察到在地球的兩極地區海平面的上升及冰川的融化。
Scientists also believe that global warming is affecting endangered plants and animals,sea life and the seasonal activities of organisms.
極地冰川消融導致海平面上升，影響到瀕危動植物，海洋生物以及生物的季節性活動。
