Thursday, April 9, 2009

What will global warming look like? Scientists point to Australia

I came across this rather sobering article in the Los Angeles Times today, which offers up Australia as an example of the things to come on a global scale. In their words:

They call Australia the Lucky Country, with good reason. Generations of hardy castoffs tamed the world's driest inhabited continent, created a robust economy and cultivated an image of irresistibly resilient people who can't be held down. Australia exports itself as a place of captivating landscapes, brilliant sunshine, glittering beaches and an enviable lifestyle.

Look again. Climate scientists say Australia -- beset by prolonged drought and deadly bush fires in the south, monsoon flooding and mosquito-borne fevers in the north, widespread wildlife decline, economic collapse in agriculture and killer heat waves -- epitomizes the "accelerated climate crisis" that global warming models have forecast.

With few skeptics among them, Australians appear to be coming to an awakening: Adapt to a rapidly shifting climate, and soon. Scientists here warn that the experience of this island continent is an early cautionary tale for the rest of the world.

"Australia is the harbinger of change," said paleontologist Tim Flannery, Australia's most vocal climate change prophet. "The problems for us are going to be greater. The cost to Australia from climate change is going to be greater than for any developed country. We are already starting to see it. It's tearing apart the life-support system that gives us this world."



The article paints a profoundly disheartening picture of the situation facing us all, and that's just as well, since we need such sober assessments to put things in a proper context for us.

This is not the first time that I have read or heard about the plight of farmers in Australia, and the fact that the driest continent is becoming even drier. I did not know about the dire situation in northern parts of the country, however.

What troubles me is the fact that this is happening in one of the richest countries in the world. If Australia is unable to deal with the dire effects of global warming, what will happen to places in Asia and Africa that are just as susceptible as Australia is to the effects of climate change?


Wednesday, April 8, 2009

Obama looks at climate engineering

The president's new science adviser said Wednesday that global warming is so dire, the Obama administration is discussing radical technologies to cool Earth's air.

John Holdren told The Associated Press in his first interview since being confirmed last month that the idea of geoengineering the climate is being discussed. One such extreme option includes shooting pollution particles into the upper atmosphere to reflect the sun's rays. Holdren said such an experimental measure would only be used as a last resort.

~~~

But Holdren noted that shooting particles into the air—making an artificial volcano as one Nobel laureate has suggested—could have grave side effects and would not completely solve all the problems from soaring greenhouse gas emissions. So such actions could not be taken lightly, he said.

Still, "we might get desperate enough to want to use it," he added.

Another geoengineering option he mentioned was the use of so-called artificial trees to suck carbon dioxide—the chief human-caused greenhouse gas—out of the air and store it. At first that seemed prohibitively expensive, but a re-examination of the approach shows it might be less costly, he said.


Here's the link to the full article.


Oh dear, I do not like the idea of this at all. I appreciate the fact that they are looking at all the options, but I cannot fathom how this would be implemented at all. Given that this is something that would affect the whole world, would they seek the acquiescence of all countries in the world, or would the US go it alone? And what if things go wrong?

I find the fact that we have to look at such drastic measures as possible options to be nothing less than a damning statement concerning our abuse of the environment. How could we let things go so far?