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A novelty in the 1970s, plastic shopping bags are now an omnipresent product found in every corner of the world. Produced at a rate of up to one trillion bags per year, they are showing up in the darkest depths…

It started as a trickle and now the floodgates are open. Solar arrays that once sat on barren ground are now festooned with plants that attract bees, birds, and butterflies. Even the US Energy Department is getting into the act.…

Shrubs and grasses are springing up around Mount Everest and across the Himalayas, one of the most rapidly heating regions of the planet. The impact on water supplies of the small but significant increase in vegetation between the treeline and…

China has closed its Everest base camp to tourists because of a buildup of trash on the world’s tallest mountain. The move comes as the Tibet Autonomous Region Sports Bureau said it had collected 8.4 metric tons (approximately 9.3 U.S.…