21–30 of 48 posts
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That can't be a universal increase, can it? I've been worried about smog, didn't think to track carbon penetration over the last few decades...
The world over; humanity has put more carbon into the air by weight than the total sum of all that we've built on the surface, and it's still accelerating. It's a rather awesome testament to humanity, but not exactly in the positive sense given that the externalities are beginning to bite.
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It's interesting to see a nearly linear trend as far back as the data goes (1880). Do you know of any sources to see how that trend might've looked going even further back in time?
Linear? The rise is more than twice as much between 1980-2020 as 1880 to 1920.
> The global mean water level in the ocean rose by 0.14 inches (3.6 millimeters) per year from 2006–2015, which was 2.5 times the average rate of 0.06 inches (1.4 millimeters) per year throughout most of the twentieth century.
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Yes. Have a look at e.g. https://www.climate.gov/news-features/understanding-climate/...
It's interesting to see a nearly linear trend as far back as the data goes (1880). Do you know of any sources to see how that trend might've looked going even further back in time?
On geological scales we are at or near a high point [2] after the previous ice age
1: https://research.csiro.au/slrwavescoast/sea-level/sea-level-...
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We can measure tiny increments of time to see really small effects on the Earth; it's a testament to how good a lot of our instruments are really. What's scary to me is that the carbon content of the very air we breathe has increased by a third since the time when my mother was a child. That's hardly a small thing.
That can't be a universal increase, can it? I've been worried about smog, didn't think to track carbon penetration over the last few decades...
Here's a link to global CO2 levels [0]. As I understand it, it's live data from satellites.
You can see it's lower (redder) where forests and plankton are growing, and higher (whiter) elsewhere. You'll also notice that it's pretty much the same everywhere - the range is only 400 - 450 ppm.
[0] https://earth.nullschool.net/#current/chem/surface/level/ove...
Is that as scary as it sounds?
Is that as scary as it sounds?
We can measure tiny increments of time to see really small effects on the Earth; it's a testament to how good a lot of our instruments are really. What's scary to me is that the carbon content of the very air we breathe has increased by a third since the time when my mother was a child. That's hardly a small thing.
Earlier quoted context omitted.
The world over; humanity has put more carbon into the air by weight than the total sum of all that we've built on the surface, and it's still accelerating. It's a rather awesome testament to humanity, but not exactly in the positive sense given that the externalities are beginning to bite.
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Sure, some billionaire won't get that third yacht.
But it's the several hundred million women in Africa doing their family's laundry by hand who suffer much more, by far.
What we need is oodles of economic growth, in as green a way as possible. AKA, solar, batteries, nuclear, and so on. And what that means is more and better tech, more and better deployment of capital.
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It's interesting to see a nearly linear trend as far back as the data goes (1880). Do you know of any sources to see how that trend might've looked going even further back in time?
Well, 1880 is right after the industrial revolution. Unluckily we only started keeping good records after we kicked changes into a higher gear. This page has one graph that goes back further [1] (and a bunch of other interesting graphs). On geological scales we are at or near a high point [2] after the previous ice age 1: https://research.csiro.au/slrwavescoast/sea-level/sea-level-... 2: https://www.e-education.psu.e…
The only other path that leads to environmental tracking is if some order of monks developed an obscure interest in it in pre-industrial times.
Earlier quoted context omitted.
The world over; humanity has put more carbon into the air by weight than the total sum of all that we've built on the surface, and it's still accelerating. It's a rather awesome testament to humanity, but not exactly in the positive sense given that the externalities are beginning to bite.
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Earlier quoted context omitted.
We can measure tiny increments of time to see really small effects on the Earth; it's a testament to how good a lot of our instruments are really. What's scary to me is that the carbon content of the very air we breathe has increased by a third since the time when my mother was a child. That's hardly a small thing.
So from 0.03% to 0.04%, right.