全球变暖， 形势严峻， 刻不容缓。 可是， 人类会行动起来拯救自己吗？ 我没什么信心哎。 各国政府会放下分歧合作？ 人们会改变自己的生活习惯， 为人类前途牺牲一些眼前的方便？严重怀疑呵。
https://www.bbc.com/news/science-environment-45775309
Final call to save the world from 'climate catastrophe'
Their dramatic report on keeping that rise under 1.5 degrees C says the world is now completely off track, heading instead towards 3C.
"Scientists might want to write in capital letters, 'ACT NOW, IDIOTS,' but they need to say that with facts and numbers,"
Not any more. This new study says that going past 1.5C is dicing with the planet's liveability. And the 1.5C temperature "guard rail" could be exceeded in just 12 years, in 2030.
We can stay below it - but it will require urgent, large-scale changes from governments and individuals and we will have to invest a massive pile of cash every year, about 2.5% of global gross domestic product (GDP), the value of all goods and services produced, for two decades.
