Hello fellow scientists!Thanks to your active collaboration,our study the worlds largest uncontrolled experiment.crossed a historic milestone on May 9,2024,Ahead of schedule,the concentration of carbon dioxide gas in the Earths atmosphere has reached 400 parts per million.This is a big change from a hundred years ago,when the concentration was just 300 ppm.below which it had stayed for more than 800,00 years.科學家們你們好！正由于你們的積極合作 我們的研究，世界上最大的不受控實驗，在2024年5月9日跨過了一個新的里程碑，我們提前將地球大氣中二氧化碳濃度，提高到了百萬分之四百。和一百年前相比 這是個極大的變化，當時二氧化碳濃度僅為300ppm，80萬年以來這個數字一直保持在300之下。Weve used the most effective methods to increase the levels of CO2 in our atmosphere.burning coal,oil and natural gas,chopping down forests,and surprisingly making cement.In some respects 400 ppm is just an arbitrary figure.an attractively round number like the four-minute mile.or the 7 billion mark for world population.but it indicates that we have reached a new phase of our experiment.我們采用了最有效的方法來提高大氣中的二氧化碳濃度：燃燒煤炭，油和天然氣，砍伐森林，還有更令人驚訝的，制造水泥。在某些方面 400ppm只是一個任意設定的數字，一個吸引人的約整數。正如每英里四分鐘（速度），或者是地球人口70億大關。但這意味著我們已經達到了實驗的新一個階段。Each day forward,we go deeper into territory uncharted in human history!After 400ppm who knows what will happen?Actually,our preliminary results give us a pretty good idea.日復一日 我們向人類歷史的未知地域探得越深！400ppm過后 誰知道會發生什么呢？實際上 我們的初步結果已帶來了比較明確的思路。Weve seen more and bigger floods,fires,droughts,and storms,Melting ice caps and rising sea levels.You may already have experienced some of these yourself,and you can expect more in the future,Please publicize our experiment and tell your friends,family and politicians how important their contributions have been.我們已經目睹了更兇猛更頻繁的洪水 大火和風暴。冰蓋在融化 海平面在上升。你可能也已經親身經歷了當中的某些事情，在未來 你可以指望經歷更多這樣的事，請幫忙宣傳我們的實驗 并且告訴你的朋友 家人，以及政客們他們對實驗的貢獻有多重要。After all,it is people-like you and me and major corporations-with access to cars,air conditioning supermarkets,and so on who are responsible for the large majority of todays greenhouse gas emissions.畢竟，是人類。如你我，還有那些大公司。通過開車，開空調，去超市購物等等，是這些人對今日排放的大部分溫室氣體負有責任。This global experiment cant continue without your participation.So remember,the next time you let your car idle,leave the Ac on when youre not home.or forget to eat the food you bought...yorre part of something big.這項全球性的實驗不能沒有你的參與，所以請牢記，下次你讓自己車閑置無用時，或是在不在家時開著空調，要么忘記吃自己帶的食物，你就是那大計劃的一部分。

Hello fellow scientists!Thanks to your active collaboration,our study the worlds largest uncontrolled experiment.crossed a historic milestone on May 9,2024,Ahead of schedule,the concentration of carbon dioxide gas in the Earths atmosphere has reached 400 parts per million.This is a big change from a hundred years ago,when the concentration was just 300 ppm.below which it had stayed for more than 800,00 years.科學家們你們好！正由于你們的積極合作 我們的研究，世界上最大的不受控實驗，在2024年5月9日跨過了一個新的里程碑，我們提前將地球大氣中二氧化碳濃度，提高到了百萬分之四百。和一百年前相比 這是個極大的變化，當時二氧化碳濃度僅為300ppm，80萬年以來這個數字一直保持在300之下。Weve used the most effective methods to increase the levels of CO2 in our atmosphere.burning coal,oil and natural gas,chopping down forests,and surprisingly making cement.In some respects 400 ppm is just an arbitrary figure.an attractively round number like the four-minute mile.or the 7 billion mark for world population.but it indicates that we have reached a new phase of our experiment.我們采用了最有效的方法來提高大氣中的二氧化碳濃度：燃燒煤炭，油和天然氣，砍伐森林，還有更令人驚訝的，制造水泥。在某些方面 400ppm只是一個任意設定的數字，一個吸引人的約整數。正如每英里四分鐘（速度），或者是地球人口70億大關。但這意味著我們已經達到了實驗的新一個階段。Each day forward,we go deeper into territory uncharted in human history!After 400ppm who knows what will happen?Actually,our preliminary results give us a pretty good idea.日復一日 我們向人類歷史的未知地域探得越深！400ppm過后 誰知道會發生什么呢？實際上 我們的初步結果已帶來了比較明確的思路。Weve seen more and bigger floods,fires,droughts,and storms,Melting ice caps and rising sea levels.You may already have experienced some of these yourself,and you can expect more in the future,Please publicize our experiment and tell your friends,family and politicians how important their contributions have been.我們已經目睹了更兇猛更頻繁的洪水 大火和風暴。冰蓋在融化 海平面在上升。你可能也已經親身經歷了當中的某些事情，在未來 你可以指望經歷更多這樣的事，請幫忙宣傳我們的實驗 并且告訴你的朋友 家人，以及政客們他們對實驗的貢獻有多重要。After all,it is people-like you and me and major corporations-with access to cars,air conditioning supermarkets,and so on who are responsible for the large majority of todays greenhouse gas emissions.畢竟，是人類。如你我，還有那些大公司。通過開車，開空調，去超市購物等等，是這些人對今日排放的大部分溫室氣體負有責任。This global experiment cant continue without your participation.So remember,the next time you let your car idle,leave the Ac on when youre not home.or forget to eat the food you bought...yorre part of something big.這項全球性的實驗不能沒有你的參與，所以請牢記，下次你讓自己車閑置無用時，或是在不在家時開著空調，要么忘記吃自己帶的食物，你就是那大計劃的一部分。