During the dinosaurs' time on Earth, "the atmosphere became charged with methane, which finally damaged the ozone layer and brought about greatchanges in the vegetation, " it added.
OnStar, for its part, acknowledges that it didn't do a great job of communicating these changes to its customer base and seems committed to making a change.
Because of the great difficulty and cost associated with this type of drilling, it is very susceptible to changes in oil company budgets and the price of oil.
Studies of Australia's Great Barrier Reef show that levels of calcification are down, though it is not yet possible to say changes in chemistry are a reason for this.