4
votes
2answers
331 views

Does physics give a climate sensitivity to carbon dioxide of about 3°C?

A letter to the editor of the Economist from Professor Anders Levermann of the Potsdam Institute for Climate Impact Research stated the following: The IPCC’s range on sensitivity is supported by, ...
6
votes
2answers
434 views

Are fossil fuels making the world greener?

The popular understanding (at least among those who are not climate skeptics) of global warming is that it is likely to create environmental catastrophe for reasons such as spreading deserts and ...
5
votes
1answer
435 views

Is global warming irreversible?

I have heard countless times the perils of global warming and how we should all do our fair share to save the Earth for future generations. Here is but one example from an NPR article: "Global ...
8
votes
1answer
495 views

Do candles emit ten times the carbon dioxide of an equivalent lightbulb?

In Wasteful Earth Hour?, it's claimed that candles emit roughly 10 times the carbon dioxide of light bulbs of the same brightness. While emissions will vary depending on the candle, the lightbulb and ...
12
votes
3answers
648 views

Could Global Warming be good for life?

A paper from Nature Geoscience (reported by the BBC here) claims that the carbon dioxide humanity has pumped into the atmosphere is holding off a new Ice Age. This has revived an old idea best ...
6
votes
0answers
178 views

Are there alternative methods of meat production (such as free-range meat) that are better for the environment than factory farmed meat? [duplicate]

Possible Duplicate: Organic food is worse for the environment because it requires more land than non-organic food Most meat in developed nations is produced by Industrial agriculture ...
4
votes
0answers
163 views

Are storms getting more or less severe in the long term for Australia?

Over the past couple of years people have been claiming that storms are getting more severe in Australia. Some linking this to global warming. Specifically Professor Ross Garnaut in the opening ...
18
votes
3answers
770 views

Did we have a “global cooling” 40 years ago?

I was reading Superfreakanomics and the book argues that we had a global cooling period 40 years ago? Is that claim accurate?