this post was submitted on 23 Jun 2025
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Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.
As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades:
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You do realize that the scale of that graph on your source is not at all linear? We see rapid changes in temperature over the last 150 years. That timescale is nothing compared to the millions of years it usually takes for a +2 degrees change in climate.
We also know exactly how CO2, Methane and other gasses cause our planet to heat up. That mechanism has been a proven fact for many many decades now and it's easily verifiable.
Today's humans (homo sapien) have existed for about 200000 years, about 10000 years of that we started to settle down in towns and villages. All that time, changes in climate were slow and not intense. Only 200-150 years ago we started to produce climate gas on a big scale and suddenly, temperatures explode. What is happening right now is clearly not a natural cycle. It is entirely caused by human action.
Are you sure about that? I’ve read that that the main source of heat / temperature on earth is Sun. CO2 is produced mainly by oceans and it is a derivative of temp. Human activity is responsible for maybe less than a 1% of all CO2 emissions. And this was proven years ago. Also - on the scale from my link a million years is like maybe a pixel, so are you sure there were no short periods (50-100 years) when temperature changed rapidly?
Are you serious? I'm not sure you're arguing in good faith.
Yes the energy, comes from the sun. More of it stays in the atmosphere because of CO2, making it warmer.
Yes, human CO2 emissions only make up a small percentage of total CO2 emissions. Nobody is denying that. But the natural emissions are part of a cycle that is stable. They get reabsorbed.
The relatively tiny amount humans added to the atmosphere (about 100 ppm since the start of industrialization) still has a huge effect.
Read this for example https://skepticalscience.com/co2-lags-temperature.htm
That link actually debunks a climate skeptic claim, have you even read it? It does not support your claims.
CO2 lags behind temperature changes, not the other way around. It can later amplify the changes.
No, that's not what it says. Yes CO2 increases with temperatures. But it's also the other way around.