Global Warming Concerns Grow by MARJORIE CONNELLY

By MARJORIE CONNELLY

More than half of Americans said global warming was caused by human behavior, the highest level ever recorded by The New York Times/CBS News poll.

Published: September 23, 2014 at 12:00AM

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Portland Will Still Be Cool, but Anchorage May Be the Place to Be by JENNIFER A. KINGSON

By JENNIFER A. KINGSON

Scientists trying to predict the consequences of climate change say that they see few safe havens from future storms, floods and droughts. But some regions, will fare much better than others.

Published: September 23, 2014 at 12:00AM

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For Polar Bears, a Climate Change Twist by JAMES GORMAN

By JAMES GORMAN

Warmer temperatures are giving polar bears less time to hunt seals but leading them to a new source of food, snow geese, with devastating results to plants.

Published: September 23, 2014 at 12:00AM

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Study Confirms Criticism of Big Bang Finding by DENNIS OVERBYE

By DENNIS OVERBYE

Astronomers who say they detected ripples from the Big Bang appear to have underestimated the extent to which interstellar dust could have contaminated their results.

Published: September 23, 2014 at 12:00AM

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Testing Future Conditions for the Food Chain by JUSTIN GILLIS

By JUSTIN GILLIS

Researchers are trying to mimic the growing conditions expected to arise decades in the future as the air fills with heat-trapping gases and other pollutants from human activity, with some worrisome results.

Published: September 23, 2014 at 12:00AM

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SpaceX Launches 3-D Printer, Other Station Gear by THE ASSOCIATED PRESS

By THE ASSOCIATED PRESS

A SpaceX cargo ship rocketed toward the International Space Station on Sunday, carrying the first 3-D printer for astronauts in orbit.

Published: September 21, 2014 at 12:00AM

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Scientists Report Global Rise in Greenhouse Gas Emissions by JUSTIN GILLIS

By JUSTIN GILLIS

The report on the emissions growth, 2.3 percent last year, showed that the world remains far off track in efforts to control global warming and came on the eve of a United Nations summit meeting on tackling climate change.

Published: September 22, 2014 at 12:00AM

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