Global Warming and Our solutions

Early 1900's we thought we have found solutions to transportation, manufactoring, etc because we could now make our own machines and we thought we don't need God any more(We thought if we depend on Him we want progress). We decided that He does not exist, not that He really doesn't but because we thought if we kept to the truth of His existance we thought we won't progress. Little by litte we started finding excuses, though our consciences not willing, to deny His existance. We said Darwin can explains the observations we see. True but He does not know everything still. He suggests a way he thinks things came into being. Should we say because his observations are true therefore his suggestion of existance of things is also true? Its like making a wrong conclusion on the right observations. And we accept it?
So we thought there is no God we started our way. By and by the gases from machines we thought were a solution accumulated and global warming was a result. And now we are looking for solutions. One of them is using ethanol. Here is what a classroom solution brought up:

During ethanol fermentation, glucose is decomposed into ethanol and carbon
dioxide.
C6H12O6 → 2C2H6O + 2CO2
During combustion ethanol reacts with oxygen to produce carbon dioxide,
water, and heat: (other air pollutants are also produced when ethanol is burned
in the atmosphere rather than in pure oxygen)
C2H6O + 3O2 → 2CO2 + 3H2O
Together, these two equations add up to the following:
C6H12O6 + 6O2 →
6CO2 + 6H2O + heat
This is the reverse of the photosynthesis reaction, which shows that the
three reactions completely cancel each other out, only converting light into
heat without leaving any byproducts:
6CO2 + 6H2O + light → C6H12O6 + 6O2

What did we forget? Photosynthesis is a natural process which we may not fully control without introducing another imbalance in nature. That leaves a lot of H2O and CO2 in the atmosphere and more globe warming? may be floods when the H2O condenses.
How do we overcome this? Do we fully understand how nature works? How can we understand the design if we deny the existance of the designer?
2 Chronicles 7:21 says it very clearly:

If my people, who are called my my name, shall humble themselves, and pray,
and seek my face, and turn from their wicked ways; then I will hear from
Heaven, and will forgive their sins and will heal their
land.

If our scientist humbled themselves and acknowledged God, won't He reveal the design of his creation to them and let them find a solution to our problems?
I think we have been like teenagers going through adolesence rebelling against God cause we thought we thought we have now "grown up" we know everything and can stand on our own. So God said "laissez faire". And we destroyed everything in our world and we are now afraid how are we gonna live on? God's laissez faire was 'cause He loves us and wanted us to understand Him. He says if we let go of our pride go to him say "Father forgive us for we never knew what were doing". He will forget that we did not acknowledge Him and heal our land.