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11-14-2017, 03:15 PM
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Letter to humanity from 15,000 scientists raise climate change alarm
 In 1992, a “warning” sent by the Union of Concerned scientists and signed by 1,700 such people painted a dire picture of what could happen if the ozone layer problem wasn’t dealt with. 25 years later, the ozone situation has improved but the planet, and humanity, is in an even worse condition. That is practically the message sent by the … Continue readingأكثر... ??????? ??????: Letter to humanity from 15,000 scientists raise climate change alarm || ??????: rss || ??????: اسم منتداك
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