Busting the polar bear myth

Mon, 2007-09-10 12:11Kevin Grandia
Kevin Grandia's picture

Busting the polar bear myth

Joseph Romm has a great article today on the grim prediction that polar bears will be extinct by 2030.

The myth is that polar populations are increasing. Far from it, Romm explains. 

Comments

What ever happened to that infamous “peer reviewed” paper by Tim Ball that was supposed to appear sometime this year?

Was that one that Exxon had paid for and Willie Soon had led?

If so, I don’t know what happened to it – probably didn’t make it through peer review. 

http://www.cbc.ca/national/blog/video/environmentscience/melting_arctic_ice.html

There’s a letter in today’s Globe and Mail, by Ryan Kerbel, pointing out that when the top predator goes, it affects the entire food chain. With no polar bears, the seal population would go up and thus the fish population would go down, so there would be more alge growth removing oxygen from the ocean, thus killing other marine species and eventually affecting oxygen in the air.

I wonder though if it’s more complicated; if the polar bears die from the change in their habitat, will the seal population also decrease because of the change in their habitat? Would the fish population go down, or would they be replaced by other species used to warmer water? Then, if the weather harms our crops, would humans be taking more fish to eat from the Arctic?

[x]

Problems caused by climate change are likely already dangerous and global warming may be irreversible, according to a draft science report by a United Nations committee.

The Intergovernmental Panel of Climate Change (IPCC) report, leaked earlier this week to a number of major media organizations, said continued greenhouse gas emissions caused primarily by burning oil, coal and natural gas will probably increase the likelihood of  “severe, pervasive and irreversible impacts for people and ecosystems.”

The New York Times...

read more