i think both accessible to drinking Water and O2 will go hand in hand to decide our extinction.
Pessimisim is unhealthy. So too is complacency.
So the best is to stick to facts and let one institute an 'informed' mind as he/she goes about daily grind.
70% of Earth's oxygen comes from marine algae as well as the absorbtion of CO2. And 70% of earth is covered with water (earth's surface level anyway).
Since the 60s, Nasa had been involved in studies and debates on how to 'terraform'/ geo-engineer other planets such as Venus ( Carl Sagan) and Mars ( Levine/Fogg) to make it habitable for human life. Algae - the seeds of life - is one of the techniques that would be used - for it grows quickly under the harshest conditions. Within decades, at least Mars would become habitable with an Earth-like atmosphere.
It is expensive, but rather than to do it on a planetary scale, smaller structures can be constructed in space which a significant portion of humanity can exist using such methods.
As for Earth, the end of total humanity is not near, at least not yet, even for the most catalysmic calamity. So live and love to your fullest, be responsible, we aint gonna die yet.
with the death of the rainforest in 40 years, a lot of land living things will perish as food will become so scarce. the elimination of earth's major oxygen producer would distort air composition and suffocate man kind. without food, oxygen breathing is useless.
Dun worry lah, you dun another 40yo, maybe i do, but I am not worry, so why you worry?? Look, CO2 is also make of oxygen, the only chemistry needed is to break the C from the O2 and viola!!, we got oxygen. We are working on it. I think in a few years time, there will be a break thru, in the meantime, be cool.
Angel
Temasek Scientist
Science Park
Originally posted by Daddy!!:ever wonder how fast we are all dying as human race? Answer is in about 40 years.
http://www.rain-tree.com/facts.htm
The rainforest provides the bulk of oxygen and the primary producer in our planet's food chain. Without the rainforest, we would die fast.
40 f.cking years !!
Daddy, if you go on F and FXXXing, i think by 10 years time you go lame and die liao, you think you can go on 40 fxxxing meh??
Remember, the more you use, the faster it worn