CO2 ja meret - happamoituminen kiihtyy
ja lisää tuomiopäivän tarinaa, nyt merien happamoitumisesta:
Dr Veron, former chief scientist with the Australian Institute of Marine Science, said acidification of the oceans would lead to mass extinctions once CO2 levels reached a tipping point and began driving themselves.
He said the chemistry was simple: carbon dioxide is dissolved into water, creating very weak carbolic acid which attacks the carbonates that corals depend on.
"The corals can't develop properly," he said. Some observers think 560ppm (parts per million) of CO2 is the "tipping point" at which a feedback mechanism kicks in, creating a self-fulfilling cycle driving itself towards mass extinctions.
"There's no doubt about this at all," he said. "By 2050 ocean acidification will have taken hold. By perhaps 2060 it will be uncontrollable."
Dr Veron said he would take on the role of a "mini Al Gore", warning the public of the unrecognised dangers of ocean acidification and the destruction of the world's reefs.
"Mass extinctions are horrific beyond imagination," he said.