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Pacific bird refuge struggles as ocean garbage patch grows
Mural of activist Greta Thunberg going up in San Francisco
Self-driving shuttle, car shown off in Northern Virginia
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Where have the wild birds gone? 3 billion fewer than 1970
Tail pipe tussle: Maryland to fight Trump administration over emissions standards
Designs revealed for incredible new space hotel
What’s known about ‘polio-like’ illness affecting hundreds of children
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