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I wonder if that had anything to do with heavy industry intensifying from WW2? It seems too perfect a fit not to be war-related, especially as temperatures dropped off significantly from 1945 onwards.
Most of the temperature spikes in the last century can be traced to increased CO2 emissions by humans. Global temperatures were pretty stable until the industrial revolution, and they've generally trended upwards since.
As far as the 40's to 70's goes, there were a lot of trucks, trains, tanks, planes and ships active in the northern hemisphere during WW2; but there was also no sulphur emission regulations, and sulphates can cause a delayed cooling effect because they reflect solar radiation. Hence why giant volcanic eruptions can cause periods of global cooling.
Sulphates combine with water and come down in rain in the form of sulphuric acid (acid rain) though, so the effect is temporary. That can explain the rise and then fall before rising again.
https://www.newscientist.com/article/dn11639-climate-myths-the-cooling-after-1940-shows-co2-does-not-cause-warming/
There's also natural variation, sulphur emission regulation, NOx exhaust regulations, and CFCs to account for when considering rises and dips over the last century.
https://earthobservatory.nasa.gov/features/GISSTemperature/giss_temperature4.php
sounds likee a plan lets start poking at dormant volcanos
i wouldnt, volcanos release a lot of co2
Your mom releases a lot of co2
r/angryupvote
In the book The Ministry For The Future, India starts releasing reflective aerosols into the atmosphere to buy us time bringing down the global CO2. I could absolutely see us trying this in desperation if things get worse.
Geoengineering is an interesting possible solution, the problem is there may be no way to reverse it if it doesn't work as planned.
Looks like it really started steaming in the 80s... right around all the nuke testing cock measuring between the US and Russia. WEIRD.
Look at it around the time of WW2. The US developed, successfully tested and dropped a few nukes. That temperature spiked then calmed down while we all shook in horror and astonishment then comes the 80s... what was Russia doing? You guessed it, testing and fine tuning nuclear weapons. How many have been tested since then? Think maybe that might have a little to do with it?
There's really not a lot of evidence to suggest that nuclear testing has contributed significantly to global warming. They caused massive environmental damage, but not in the way of greenhouse gases.
CFCs reached their worldwide peak in the late 60's/early 70's and weren't banned until the late 80's/early 90's; and automotive NOx emissions weren't regulated until the late 90's/early 00's. The former destroyed the ozone layer, the latter is a potent greenhouse gas.
Thats why they called it the "Cold" war
Or the testing of nukes
I think you're not comprehending the scales we're talking about here. Nukes don't even touch the sides of the greenhouse gas warming we've seen. To achieve the amount of warming we've seen without greenhouse gases and just using nukes, we'd need to detonate 500,000 nukes a day, every day, 24/7.
Nuke testing wasn't a thing until '45 and only involved a few small blasts. It greatly intensified in the decades past.
I was thinking it started to go out of whack around the same year atomic bombs first were tested (but the video is sort of fast and it looked like 1943 was when the trend changed).
The dark side is a path to many abilities some consider to be unnatural.
Lol
Using this logic you can make depression powered iphones
Prob atomic bombs
There was a spike in temperature in Japan in 1945...
Two spikes. Three days apart.
Yes, I’m totally intrigued by that spike.
Those pesky world wars