1. Most ALL of the so-called "greenhouse gas" is WATER VAPOR! Unless someone has found a way to stop evaporation from the oceans, lakes, rivers and streams, the TRANSPIRATION from trees and other plants, that situation will be with us...all together now...FOREVER.
2. By photosynthesis, plants take in CO2 and give back the O2 humans and animals REQUIRE for life. Reduce CO2 and plants perish. Increased CO2 = more plant life, ergo MORE O2! It's a rather stable balance.
3. One MAJOR volcanic eruption spews more vapor and other "greenhouse gases" into the atmosphere than MAN HAS PRODUCED SINCE MAN HAS BEEN ON THE PLANET! I have yet to hear a serious legislative proposal BANNING VOLCANIC ERUPTIONS!!!
(I suggest these frantic "greenies" gather at the upper rim of the next major volcanic outbreak to study the "problem" up close and personal. Now THAT would solve many of our problems!)
There's a lot more but I think you get the idea!
If you want to understand how that works, reread "1984" by Orwell. It's all laid out there.
No, the major element controlling our climates is the SUN. "Global warming", "climate change" or whateverthehell new name these idiots and grant money whores come up with is how THEY seek to CONTROL ALL OF US!!
Not even close. Pinatubo released 42 Mt of CO2 and mankind releases 7100 Mt every year.
However solar activity is slow right now and because of leftover ocean warming (especially in the Arctic) there is a lag in cooling. If the coming cooling (strong likelihood) could be solved by one volcano worth of GHG that would be great, but unfortunately not even close to correct. For one thing, CO2 is a weak GHG. If you count the water vapor from volcanoes that would also be incorrect in two ways: water vapor is transient, and human-produced water vapor also greatly exceeds volcanic water vapor.
All that matters is weather, i.e. the distribution of water vapor. Not even the amount matters, but how even or uneven the water vapor is. For example if there is more "extreme weather" (a popular buzz phrase with no basis in reality) there will be global cooling.