In the vacuum of space, the amount of debris—spent rocket stages, splintered satellites, micrometeoroids—numbers in the millions, all zooming about, often at 17,000 mph speeds. They’re also constantly hitting each other in a tsuris of exponential littering. Most of these pieces are tiny, and many are not anywhere near the altitude of the ISS. But the area isn’t completely clean.
Last week, the Trump administration said it is loosening restrictions on air toxins from mercury, lead and other heavy metals that are released by coal plants. Such pollution is known to be neurotoxic and has been linked to irreversible brain damage in children and infants, as well as heart disease and cancer in adults.
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我们上一次选购电车还是在2021年。彼时，中国新能源车的渗透率从前一年的5.4%提升到13.4%，进入加速渗透期，到2025年，这一数字已经突破了50.8%。