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.

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

During America's last Thanksgiving weekend, Amazon's sales of consumer electronics in the United States ________ its book sales for the first time in its history.

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 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.

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

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

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

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

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