枯渇というのはなくなるということはないからだ。
掘削能力を上げれば、深海からでも掘削は可能。
コストとの見合いになる。
省エネが進んで、使用量が半分になれば、その倍のコストをかけることができる、というような話だ。
BBCより。
Fossil fuels should be phased out by 2100 says IPCC
http://www.bbc.com/news/science-environment-29855884
新品価格 |
The unrestricted use of fossil fuels should be phased out by 2100 if the world is to avoid dangerous climate change, a UN-backed expert panel says.
The Intergovernmental Panel on Climate Change says in a stark report that most of the world's electricity can - and must - be produced from low-carbon sources by 2050.
If not, the world faces "severe, pervasive and irreversible" damage.
The UN said inaction would cost "much more" than taking the necessary action.
The IPCC's Synthesis Report was published on Sunday in Copenhagen, after a week of intense debate between scientists and government officials.
It is intended to inform politicians engaged in attempts to deliver a new global treaty on climate by the end of 2015.
The report says that reducing emissions is crucial if global warming is to be limited to 2C - a target acknowledged in 2009 as the threshold of dangerous climate change.
The report suggests renewables will have to grow from their current 30% share to 80% of the power sector by 2050.・・・
—ある意味、化石燃料の使用は止まらないと言っているに過ぎない。
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