プラスチック廃棄物の増加は,プラスチック汚染を軽減するための努力を上回る
Stephanie B Borrelle1,2,3, Jeremy Ringma4,5,6, Kara Lavender Law7
1Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario, Canada. stephborrelle@gmail.com chelsea.rochman@utoronto.ca.
まとめ
地球規模のプラスチック汚染は 生態系を脅かしています 特別な努力がなければ 海洋に流入するプラスチック廃棄物は 2030年までに年間5300万トンに増加し プラスチック経済を緊急に変革する必要があります
科学分野:
- 環境科学
- エコロジー
- 汚染 制御
背景:
- プラスチック汚染は海洋と淡水生態系に 深刻な脅威をもたらしています
- 現在の緩和戦略は プラスチック排出量を削減する効果の量的な評価が欠けている.
研究 の 目的:
- 3つの広範な管理戦略がプラスチック排出量に与える影響を定量的に評価する.
- 173カ国の水生生態系への将来のプラスチック排出量を推定する.
主な方法:
- プラスチック廃棄物の削減,廃棄物管理,環境再生の3つの戦略を評価した.
- これらの戦略の異なるレベルの努力を評価した.
- 海洋生態系へのプラスチック排出量を2030年までモデル化
主要な成果:
- 2016年,世界のプラスチック廃棄物の推定19~2300万トン (11%) が水生生態系に入りました.
- 現在の政府の約束によると 2030年までに年間排出量は 5千3百万トンに達する見込みです
- プラスチックの排出量が大幅に増加すると予測されており,減量への取り組みが強化されていない.
結論:
- プラスチック汚染の危機を抑えるには 既存の緩和戦略は不十分です
- 排出量を大幅に削減するには プラスチック産業の変革が不可欠です
- 野心的なプラスチック排出削減目標を達成するには 特別な努力が必要です
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