Humans are Causing Global Warming

Big_Al_B writes "A Times Online article discusses a new study comparing 7 million real world datapoints with several computer models of global warming. Each model had a possible cause associated with it." From the article: "It found that natural variation in the Earth's climate, or changes in solar activity or volcanic eruptions, which have been suggested as alternative explanations for rising temperatures, could not explain the data collected in the real world. "

Comments

Kyoto is only a start

[Sgs-Cruz]

The Kyoto protocol (Which I'm sure you've all read too much about over the last couple days) in my opinion is only a start. It'll reduce human-caused temperature forcing by something like 5% if fully implemented. Which of course is taken as an argument by many (read: a lot of the USA, and a lot of conservative/business types here in Canada) as a reason to not do anything.

It's funny when you read the articles arguing against Kyoto, though: they always end with "Kyoto is fatally flawed, and it'll cost too much to cut CO2, so we should wait to do it." Do you think it's going to be any easier to cut GHG emissions even more drastically in 10 years, just as we're realizing oil is getting more expensive and having to switch back to coal?

The funny thing about all of this is that Canada stands to make out really well. Our four-month growing season will probably become more like the American midwest's 6 -8 months, and our boreal forest ecosystem will shift to a St.Lawrence-Deciduous style forest, which is much more habitable for humans. Also we have a ton of oil here.

Of course, there's the problem of Prince Edward Island probably being under water by then. And oh yes, countries like Bangladesh or the Maldives which will be entirely under water if Antartica (i.e. Ross Ice Shelf) starts to melt. My view is that the best thing to do as an individual is a) bike to work (which I intend to do for the first time this summer), b) keep your house colder than you normally would, and c) evangelize energy efficiency. I don't really see that I can do anymore (aside from reading everything I can) as an just one person with no government connections.

Not millions, but here is 400,000 years worth

[skintigh2]

Not that facts often change politics-based opinions.

http://www.pbs.org/wgbh/warming/etc/graphs.html

Re:Flame Away!

[Kainaw]

If about scientists, i think the majority of scientists claim global warming is happening and it's likely to be caused by humans.

The phrase "caused by humans" is dangerous to use in this topic. It implies that global warming is directly caused by humans. However, many scientists believe that global warming is indirectly caused by humans. For instance, we eat a lof beef, so we raise a lot of cows. The cows fart and burp a lot - creating greenhouse gasses. Then we get global warming.