Countries Struggle To Agree On Rules For Reducing Greenhouse Gas Emissions
As a major climate conference nears its end in Poland, negotiators are still haggling over the rules nations must follow in order to meet their commitments to reduce greenhouse gases.
Đọc thêm tại NPR
at December 15, 2018 at 05:05AM
Health & Science
Thứ Bảy, 15 tháng 12, 2018
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