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| 1 | reduce the world's overall greenhouse gas emissions by half by 2050 as compared to today's level | 世界全体の排出量を現状に比して2050年までに半減 | |||
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| 1 | reduce the world's overall greenhouse gas emissions by half by 2050 as compared to today's level | 世界全体の排出量を現状に比して2050年までに半減 | |||