标题: Global Warming 全球变暖 [打印本页] 作者: David 时间: 2019-12-5 23:07 标题: Global Warming 全球变暖 回帖下载完整视频、音频及双语全文：
Europe faced a record-breaking heat this summer. It was so hot that you could have fried an egg on the pavement. Temperatures in many countries are getting beyond 45 degrees Celsius, highest ever on record since 1880. Such extreme temperatures are also killing people.
The hot weather also leads to other serious consequences, such as glacial melting. Melting glaciers in the North and South poles and Himalayas are contributing to sea level rise and flooding. Coastal cities, ranging from America to Asia, are drowning as a result.
Moreover, there is a less widely known consequence of global warming: the thawing permafrost. Permafrost usually exists in polar regions. It's underground soil that's always frozen. The thawing permafrost releases methane and other carbon compounds and further warms up the atmosphere.
But that's not the worst. As the permafrost melts, bacteria and viruses that were trapped in the ice sheets for centuries are getting released, spreading deadly diseases. Scientists have found several diseases that we once thought had been eradicated.
Scientists believe that greenhouse gas emission is a crucial factor leading to the sudden increase in temperatures globally. The greenhouse gases are known for trapping heat. And these gas emissions mostly come from thermal power plants, automobiles and factories that use fossil fuels like coal, diesel and petrol. That's to say, human activities are responsible for global warming.
Using public transport, planting trees and recycling waste like plastics are all effective ways to reduce carbon footprint. Turning off electronic devices when not in use can also be very beneficial.
Furthermore, lowering the thermostat by 2 degrees in winter and upping it 2 degrees in summer could save nearly a kilogram of carbon dioxide every year.
调节室温也是好办法。冬天调低2度，夏天调高2度，每年就能减少接近1000克的碳排放。
Everyone should play their part in slowing down global warming because it is a matter of human survival.