Sunday, March 4th, 2007
A wildlife conservation group said it is trying to pressure U.S. states to regulate carbon dioxide emissions under federal clean water laws because of harm the gas does to the cycle of life in the ocean.
Unlike most other developed countries, the United States, the world's top greenhouse gas emitter, does not regulate carbon dioxide and other gases that scientists link to global warming. Efforts by states and environmental groups to regulate CO2 through clean air laws have so far failed.
The Center for Biological Diversity, a national environmental group, on Wednesday petitioned California to regulate CO2 under the Clean Water Act.
Posted in Diving | Comments Off
Thursday, March 1st, 2007
Male loggerhead turtles could entirely disappear from the beaches of Florida - one of the most important nesting grounds in the US - if the temperatures there rise by 2oC, according to a new study.
This gender imbalance means female turtles in Florida will be increasingly reliant on male turtles migrating from North Carolina, hundreds of miles up the Atlantic coast, in order to breed. And as the coast warms, the northern male turtle population will find it harder to meet such breeding demands, the researchers fear.
The gender of marine turtle offspring is determined by the temperature at which the eggs are incubated: high temperatures lead to a higher proportion of females. In Florida, 90% of offspring are females.
Posted in Diving | Comments Off
