Even with the best will1 in the world，reducing our carbon emissions is not going to prevent global warming.It has become clear that even if we take the most strong measures to control emissions，the uncertainties in our climate models still leaye open the possibility of extreme warming and rises in sea level.At the same time，resistance by governments and special interest groups makes it quite possible that the actions suggested by climate scientists might not be implemented soon enough.

　　Basically the idea is to apply sunscreen to the whole planet.One astronomer has come up with a radical plan to cool Earth;launch trillions of feather-light discs into space，where they would form a vast cloud that would block the suns rays.Its controversial，but recent studies suggest there are ways to deflect just enough of the sunlight reaching the Earths surface to counteract the warming produced by the greenhouse effect.Global climate models show that blocking just 1.8 per cent of the incident energy in the suns rays would cancel out the warming effects produced by a doubling of greenhouse gases in the atmosphere. That could be crucial，because even the most severe emissions-control measures being proposed would leave us with a doubling of carbon dioxide by the end of this century，and that would last for at least a century more.

　　emissionn.發射，發射物 heroinn.海洛因

　　n.住院治療

　　geoengineering n.地質工程 astronomern.天文學家 5triljEn7kauntE5rAktp

　　百萬兆; 萬億，兆 7kCntrE5vE:FEl E5nAlEdVip

　　adj.有爭議的

　　1. the best will：最好的愿望

　　3. scientists still have a few tricks叩their sleeves：科學家們仍然有些不為人所知的招數。 have something up ones sleeve是英語成語，意思是：to have a secret idea or plan，有錦囊妙計，有所保留的，秘而不宣的謀略或計劃，例如：If this trip doesnt work out Ive still got a few ideas up my sleeve.

　　Even with the best will1 in the world，reducing our carbon emissions is not going to prevent global warming.It has become clear that even if we take the most strong measures to control emissions，the uncertainties in our climate models still leaye open the possibility of extreme warming and rises in sea level.At the same time，resistance by governments and special interest groups makes it quite possible that the actions suggested by climate scientists might not be implemented soon enough.

　　Basically the idea is to apply sunscreen to the whole planet.One astronomer has come up with a radical plan to cool Earth;launch trillions of feather-light discs into space，where they would form a vast cloud that would block the suns rays.Its controversial，but recent studies suggest there are ways to deflect just enough of the sunlight reaching the Earths surface to counteract the warming produced by the greenhouse effect.Global climate models show that blocking just 1.8 per cent of the incident energy in the suns rays would cancel out the warming effects produced by a doubling of greenhouse gases in the atmosphere. That could be crucial，because even the most severe emissions-control measures being proposed would leave us with a doubling of carbon dioxide by the end of this century，and that would last for at least a century more.

　　emissionn.發射，發射物 heroinn.海洛因

　　n.住院治療

　　geoengineering n.地質工程 astronomern.天文學家 5triljEn7kauntE5rAktp

　　百萬兆; 萬億，兆 7kCntrE5vE:FEl E5nAlEdVip

　　adj.有爭議的

　　1. the best will：最好的愿望

　　3. scientists still have a few tricks叩their sleeves：科學家們仍然有些不為人所知的招數。 have something up ones sleeve是英語成語，意思是：to have a secret idea or plan，有錦囊妙計，有所保留的，秘而不宣的謀略或計劃，例如：If this trip doesnt work out Ive still got a few ideas up my sleeve.