The ocean is capable of removing carbon, and quickly, but this natural _____ can be too much.

Far from becoming ______ online shoppers are very demanding.

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.

Zachos is a leading ______ on the episode of global warming known as the palaeocene-eocene thermal maximum.

The ocean is capable of removing carbon, and quickly, but this natural process can be easily ______.

Zachos warned that studies of global warming events in the geological past _______ we are reaching dangerous new levels.

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

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

"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.

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.

Smarter consumers know which products have a good _______ and which do not.