A study comparing the rate at which carbon dioxide and methane are being _______ now, 55 has found dramatic differences in the speed of release.

The stores run by Sony and Apple, for instance, are there for people to try out _______ and to ask questions to knowledgeable staff.

Zachos´ research into the deep ocean _______ suggests at this time that about 4.5 billion tons o{ carbon entered the atmosphere over 10,000 years.

Far from becoming ______ online shoppers are very demanding.

"This will be the same amount of carbon released into the atmosphere from cars and industrial emissions over the next 300 years if present ____ continue", Zachos said.

Other transformations in the retail business are ______ to follow the trend of Amazon.

James Zachos, a professor in Santa Cruz California, said the speed of the present buildup of greenhouse gases is far greater than during the global warming after the ______ of the dinosaurs.

There can be no ______ that online shopping is of huge benefit to the consumer.

Greenhouse gases are being released into the atmosphere 30 times faster than the time when the Earth experienced a ______ episode of global warming.

It seems the Earth's climate passes a _______ beyond which climate change accelerates with the help of positive feedbacks - vicious circles of warming.

Amazon is swiftly becoming a ______ retailer by letting other companies sell products on its site.

Online traders must also adjust. Amazon, for one, is ______ turning from being primarily a bookseller to the go to shop for everything.