What is net zero? We release 55 gigatons of greenhouse gases into the air every year. To stop global warming, we have to get our greenhouse gas emissions down to zero.
淨零是什麼? 我們每年排放 55 億噸 溫室氣體至大氣中。 為了阻止全球暖化, 我們必須將溫室氣體排放量降到零。
But for every country to immediately shut down all greenhouse gas-releasing activities would be an enormous challenge, especially since some countries have built up an economic head start with no restrictions. So instead, we can use an approach called net zero.
但是,要每個國家立刻停止 所有溫室氣體排放活動 是一項巨大的挑戰, 因為有些國家 早已建立了沒有限制的經濟體。 但我們可以用一種 稱為「淨零」的方法。
Net zero means that for every molecule of greenhouse gas we put into the air, we also take one out, making our net emissions zero. Net zero requires us to make big changes today, use less more efficiently, and even bigger technological changes for the future, like replacing all greenhouse gas-emitting activities with clean ones. We'll also have to capture greenhouse gases from the air and store them permanently. And yet, net zero is our best chance for a sustainable future.
所謂「淨零」就是我們在大氣中 每排放一個溫室氣體分子, 就要再拿掉一個, 讓我的們淨排放是零。 要達成淨零,我們必須 做出一些重大改變: 在未來使用量更少, 但更有效率、更高超的技術, 像是將所有溫室氣體排放活動 改用無排放的方式取代。 我們也必須匯集空氣中的溫室氣體 並將它們永久貯存起來。 如此,淨零才會讓我們有機會 擁有永續的未來。
[Countdown Take action on climate change at Countdown.ted.com]
【倒數計時】 【採取行動因應氣候變遷, 請到 Countdown.ted.com】