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Tree Tally

By digitalizing photographs and other museum records, scientists are closing in on the number of tree species left to be discovered in the Amazon rainforest.

Tiny Baubles

As many as 51 trillion particles of discarded plastic lie on the ocean floor, threatening marine life globally.

Landfill Eulogy

Sweden’s waste-to-energy plants are so efficient that it has closed many landfills and actually imports trash to burn from other European countries.

Humpback Holler

Humpback whales that leap out of the water are making a big splash to communicate with distant pods, Australian researchers have found.

Window Pain

As many as one billion migrating birds die annually when they collide with glass windows in the United States.

Migrating Trees

Three-quarters of American tree species have shifted to the West since 1980 due to dryer conditions in the East and changing rainfall patterns.

Plutonium Problem

To safely dispose of 56 million gallons of nuclear waste dating back to the Second World War, the Department of Energy might replace a glass-log encasement plan with a cement option.

Bat Banter

Computer algorithms helped Israeli researchers decode the language of Egyptian fruit bats and discover that bats exchange information about specific problems.

Tuna Turnaround

Levels of toxic mercury in Atlantic Bluefin tuna declined 19 percent between 2004 and 2012, a drop that scientists attribute to a shift from coal to natural gas and renewable energy.

Buzzing RoboBees

Harvard researchers have invented tiny robotic bees that may be able to eventually pollinate the crops that are under threat because of vanishing bee colonies.

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