The 21st century middle, because the greenhouse effect, the polar melting glaciers, earth many cities submerged.

21世纪中期，由于温室效应，南北极冰川融化，地球上很多城市被淹没。

youdao

The summer is hot enough, maybe it's because of the greenhouse effect.

全球暖化是因为温室效应的结果。

youdao

That is because the CO2 greenhouse effect is weak and marginal compared to natural causes of global temperature changes.

FORBES: To The Horror Of Global Warming Alarmists, Global Cooling Is Here

But the strength of the greenhouse effect depends on the chemical composition of the atmosphere, because the phenomenon is due to the absorption of infra-red radiation by various gases in the air.

ECONOMIST: Climate change: Getting real | The