Hacker News new | ask | show | jobs
by allturtles 863 days ago
> But day after day, over decades, surely the minuscule amount of heat being generated by activity on the surface has SOME cumulative effect. Or maybe not, i dont know.

What if you apply the same logic to the sun? Shouldn't we be getting hotter and hotter every day from the cumulative heat from the sun until we all cook? The reason we don't is that the earth is constantly radiating heat out into space. [1]

This is connected to why carbon dioxide is the primary driver of the current warming trend: it absorbs some of the infrared that would go back into space and sends it back down again. We know that this happens, we know that carbon dioxide concentrations are increasing due to fossil fuels, we know that temperatures are increasing.

[1]: https://en.wikipedia.org/wiki/Earth%27s_energy_budget#/media...