Corals Adapt to Global Warming

Chuck1318 writes "Articles in Nature and New Scientist indicate that corals are more adaptable to global warming than previously thought. Large areas of coral reefs had been devastated by bleaching due to the loss of the coral animals' algae partner, which is sensitive to changes in water temperature. Some scientists had projected that coral reefs would all be gone in 20 to 30 years. Now it is found that a more heat-resistant strain of algae is able to colonize the bleached coral, returning them to life."

Comments

Evolution works

[Marxist Hacker 42]

It always amazes me how many people believe in evolution, yet still believe major climate change must spell disaster. Almost as bad are the number of people who claim that God couldn't possibly have used evolution to create the species.

Re:Evolution works

[Marxist Hacker 42]

Darwin's old fashioned- Gould's theory of evolutionary spurts claims that a beneficial mutation can appear in as little as a single generation- though it takes multiple generations of that mutation being successfull in the environment to survive. With a significantly large population, minor mutations happen all the time; and by killing off competitive phenotypes, the new phenotype is more likely to survive after a rapid major climate change.

The key words are "life as we know it"- which doesn't exclude "life as we currently don't know it".

The larger the population, the greater the chance that a suitable phenotype will find a way to survive, just as in the article algae phenotype C dying off gave algae phenotype D a chance to colonize the newfound coral reefs. Phenotype D already existed; probably for many years; but as long as phenotype C survived, it could not take over.

Re:Evolution works

[Marxist Hacker 42]

[1] I don't doubt scientific evidence for global warming. I do doubt that human beings are powerful enough to cause it singlehandedly. And I do doubt that it's a catastrophic event unseen in the history of the planet. In fact, it seems pretty normal. We've just had a nice period of calm for the last thousand years.

Where I don't doubt we could cause it singlehandedly- chances are by the time we noticed it we were already too late to do anything about it. And it most certainly is NOT unseen in the history of the planet- our calm has only lasted about 600 years BTW- since the 1400s. Previous to that we had a global warming severe enough that raising Oranges in England was not unheard of, for about 200 years (which also cause a huge increase in the mosquito, flea, and rat populations- which brought us the Black Death and the destruction of 1/3rd the human population of Europe- yet still the human race survived).