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@Edmonton

不该以地球为尺度，因为大部分时间里不适合人类生存，也没有人，50亿年为尺度，甚至大部分时间里没啥生物。适合三叶虫的，适合人吗？我们不是救地球，是救自己。人类能适应生存的温度，才该是我们注意的。人死光了，关地球啥事？

mikesmith(老猫)

Carbon dioxide (CO2) levels in the Earth's atmosphere have increased significantly over time, particularly since the Industrial Revolution:

  • Growth rate

    The annual growth rate of atmospheric CO2 has increased dramatically over the past 60 years: 
    • In the 1960s, the growth rate was about 0.8 ppm per year 
    • In the 2010s, the growth rate reached 2.4 ppm per year 
    • In mid-2024, the growth rate is estimated to be 2.67 ppm per year 

  • Concentration

    The average global concentration of CO2 in 2022 was 417 parts per million, which is more than 20% higher than in 1979

  • Comparison to past levels

    The current concentrations of CO2 are unprecedented over the past 800,000 years

  • Comparison to natural increases

    The current rate of increase is about 100 times faster than natural increases, such as those that occurred at the end of the last ice age

Human activity has significantly altered the atmosphere within a few generations. The consequences include:

  • Disruption of climate systems, such as more powerful storms, prolonged droughts, and deadly heat waves
  • Ocean acidification 

Other greenhouse gases, such as methane and nitrous oxide, have also increased significantly over the last few hundred years

(#16356985@0)
Last Updated: 10-27
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Replies, comments and Discussions:

  • 工作学习 / 科技自然 / 地球二氧化碳的浓度正处于历史的低点. -jianghongca(慎独); 10-26 {608} (#16356587@0) +3
    CO2, 二氧化碳, 地球变暖，欺骗， 极端环保主义
    Full Story:
    https://www.opencs.ca/2024/10/blog-post_26.html
    • 不这么搞绿色环保, 用什么借口割韭菜呢？看看油价吧, 里面乱七八糟的税占了一多半。你加油其实是在交税。 -purestone(石头); 10-26 (#16356619@0) +5
      • 你感觉问问版主吧，让版主给你解释一下这张图的来龙去脉。 -killer(_); 10-26 (#16356685@0) +1
        • 几年前，华文的媒体如51报道说：美国的著名科技期刊发文，地球二氧化碳正处于30亿年以来的最高峰值。现在又说历史低点-----矛盾 -dickie(Newyear); 10-27 (#16356978@0)
          • So one of them is a lie. -**🦆; 10-27 (#16356982@0)
            • 实名的被开除出党了。 -killer(_); 10-27 (#16358021@0)
    • 不该以地球为尺度，因为大部分时间里不适合人类生存，也没有人，50亿年为尺度，甚至大部分时间里没啥生物。适合三叶虫的，适合人吗？我们不是救地球，是救自己。人类能适应生存的温度，才该是我们注意的。人死光了，关地球啥事？ -mikesmith(老猫); 10-27 {1819} (#16356985@0) +4

      Carbon dioxide (CO2) levels in the Earth's atmosphere have increased significantly over time, particularly since the Industrial Revolution:

      • Growth rate

        The annual growth rate of atmospheric CO2 has increased dramatically over the past 60 years: 
        • In the 1960s, the growth rate was about 0.8 ppm per year 
        • In the 2010s, the growth rate reached 2.4 ppm per year 
        • In mid-2024, the growth rate is estimated to be 2.67 ppm per year 

      • Concentration

        The average global concentration of CO2 in 2022 was 417 parts per million, which is more than 20% higher than in 1979

      • Comparison to past levels

        The current concentrations of CO2 are unprecedented over the past 800,000 years

      • Comparison to natural increases

        The current rate of increase is about 100 times faster than natural increases, such as those that occurred at the end of the last ice age

      Human activity has significantly altered the atmosphere within a few generations. The consequences include:

      • Disruption of climate systems, such as more powerful storms, prolonged droughts, and deadly heat waves
      • Ocean acidification 

      Other greenhouse gases, such as methane and nitrous oxide, have also increased significantly over the last few hundred years

      • When the earth becomes warmer, there will be more food for humans and animals. -**🦆; 10-27 (#16356993@0) +1
      • 假如正义的战争触发了世界核大战，让地球进入核冬天状态，试问：这是正义的价值所能抵消的代价吗？ -see1see(Isee); 10-27 (#16356996@0) +1
        • 邪恶的势力引发了核大战，邪恶才是根源。就好像强奸杀人案，是因为女子太漂亮才被强奸，因为反抗了才被杀吗？所以是漂亮而反抗的女子才是自己被奸杀的原因吗？ -mikesmith(老猫); 10-27 (#16357007@0) +2
          • 比喻有些过了。就拿俄乌战来说，俄认为他们需要安全缓冲的保障，但北约不给，认为是为消除威胁一定要围死俄，于是俄报于战争来强求缓冲安全。北约为了正义非要击败俄，俄以核战威胁，北约不惜一切代价战俄最终引发核大战，人类面对核冬时真能露出胜利的笑容？俺对此表示怀疑 -see1see(Isee); 10-27 (#16357031@0) +1
          • 老猫比喻很贴切，比喻用简单明确的例子才有意义。 -curve(curve); 10-27 (#16357407@0) +4
            • 那是以简单例子来比喻复杂的现实，不具有实际意义，若国际冲突背景都这么简单，还用得着费这么多事和时间？ -see1see(Isee); 10-27 (#16357480@0) +1
          • 美国国防部长都明说了俄乌战争的目的就是要拖垮俄国，这场战争的proxy war的性质也不再有人去争论。俄罗斯可以是邪恶，但是俄乌战争的起因不是邪恶二字就可以一笔带过的 -the_dumb_one(百尺竿头); 10-27 (#16358026@0)
            • 那普丁真蠢，没看出美帝阴谋。你应该去做俄罗斯总统 -xiake(侠客); 10-27 (#16358051@0)
              • 看看报道评论很难吗？何必满足于喊喊口号解决问题。 -the_dumb_one(百尺竿头); 10-27 (#16358073@0)
              • 让猫老来，别老是打横炮。 -killer(_); 10-27 (#16358105@0)
      • 完全同意老猫。LZ标题没毛病，但由此延申指“CO2, 二氧化碳, 地球变暖，欺骗， 极端环保主义”就明显不是受过教育的人的逻辑。 -vicky2005(v大叔); 10-27 (#16357504@0) +3
        • 我看大家都不看新闻，也不关注我们亲爱的老大，这张图老大前几天刚贴出来。就是现任BC保守党党首因为了转发了这张图，被BC自由党开除出党。现在BC自由党已经没了，但是BC保守党差点赢得大选。 说起来也是相当的讽刺。 -killer(_); 10-27 (#16357949@0)
      • The chart starts from 575 million years ago, not 5 billion. -**🦆; 10-27 (#16357632@0)
        • So -mikesmith(老猫); 10-27 (#16357666@0)
          • So your points were with no ground -**🦆; 10-27 (#16357881@0)
        • 太阳系形成于 4·5 billion 之前，5 billion 时候太阳系是一片星云 -once01(作风优良自找苦吃); 10-27 (#16357939@0) +1
    • 我说过这图几亿年来的周期不能用来知道人类一两百年的活动 -palwang2000(重现江湖); 10-27 (#16357004@0)
    • 难道大家不喜欢全球变暖，加拿大该有多少地方会变得适于居住啊 -chishandingcaodeyang(吃山顶草的羊); 10-27 (#16357042@0) +3
      • 人类目前的各种生活方式很多都是为了适应目前的气候，如果气候变化，人类的生活方式就要重新适应气候，其中的成本巨大。打个比方，jasper的山火就是这样，一旦气候变化，山火就来了，不是预防能预防的了的，换句话说，与其预防，还不如烧了成本更低 ：） -killer(_); 10-27 (#16357312@0)
        • Firefighters were not allowed to enter Jasper -**🦆; 10-27 (#16357372@0)
          • 匿名ID发表模棱两可的不实消息是对网友最大的不尊重。 -killer(_); 10-27 (#16357462@0) +2
            • It's in the news -**🦆; 10-27 (#16357683@0)
              • IC 这就是不诚实的误导大家。 -killer(_); 10-27 (#16357815@0)
      • 事情不是那么简单的，是整个生态系统的变化。所以以前叫global warming并不准确，现在叫climate change，更大的一个类别是sustainability -whynot333(Hello); 10-27 (#16357624@0)
    • 为啥不拿南极冰说事? -xiaozuiba(老牌铲屎官); 10-27 (#16357765@0)
    • 10亿年前植物出现后，通过光合作用把二氧化碳变成氧气，所以现在的二氧化碳比10亿年前少。但是工业化后，比200年前多了很多 -everynight(无涯星海); 10-27 (#16358048@0) +2

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