Serendipper wrote:But you have to understand that there are many other large variables at play, such as our position within the galactic arms which determines cosmic ray bombardment, the earths waning magnetic field strength of late, and ozone depletion which blocks UV rays that are 40x more energetic than IR for which co2 is responsible.
CO2 is the most insignificant of the lot, both because it's in such minute concentration and because it affects only low-energy IR light.
You think something is insignificant because it is of a minute concentration? The greenhouse effect that has maintained the Earth’s temperature at a level warm enough for human civilization to develop over the past several millennia is controlled by non-condensable gases, mainly carbon dioxide, CO2, with smaller contributions from methane, CH4, nitrous oxide, N2O, and ozone, O3.
It is lunacy to think that just because something is so little in parts per million in the atmosphere that it plays an insignificant role!Serendipper wrote: ↑Wed Apr 18, 2018 8:10 pmThat sounds really scary, but co2 concentration is 0.04%.attofishpi wrote:According to an EPA scientific study published after 2007, the concentrations of CO2 and methane had increased by 36% and 148% respectively since 1750. These levels are much higher than at any time during the last 800,000 years, the period for which reliable data has been extracted from ice cores. Less direct geological evidence indicates that CO2 values higher than this were last seen about 20 million years ago.
By volume, dry air contains 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases. https://en.wikipedia.org/wiki/Atmosphere_of_Earth
So if it has increased by 100%, then it used to be 0.02%. Whoop-de-doo!
Double it again to 0.08% and it's still nothing.
As stated above it is widely accepted by scientists that levels of CO2 and methane are the main cause of the greenhouse effect, so even though there presence in the atmosphere is very small, any change in the parts per million is going the affect the climate.
Nup, extremely significant.Serendipper wrote: ↑Wed Apr 18, 2018 8:10 pmYup, and it's still insignificant.attofishpi wrote:Fossil fuel burning has produced about three-quarters of the increase in CO2 from human activity over the past 20 years. The rest of this increase is caused mostly by changes in land-use, particularly deforestation.
Again, you expect me to do experiments of my own!!Serendipper wrote: ↑Wed Apr 18, 2018 6:10 amHow do you know the studies are verified if you haven't verified it? Yes, you're gullible.
How have you personally verified that CO2 and methane levels are not significant factors when it comes to the greenhouse effect?