Antarctic CO2 Hit 400 PPM for First Time in 4M Years
scientificamerican.com
Antarctic CO2 Hit 400 PPM for First Time in 4M Years
1–10 of 315 posts
Re: Antarctic CO2 Hit 400 PPM for First Time in 4M Years
#2The worst thing is that we can't stop it when it will be too late. This doesn't work like a switch. Even if we would drastically cut all CO2 emission those levels would not drop in our lifetimes.
Re: Antarctic CO2 Hit 400 PPM for First Time in 4M Years
#3The worst thing is that we can't stop it when it will be too late. This doesn't work like a switch. Even if we would drastically cut all CO2 emission those levels would not drop in our lifetimes.
That compounded with climate lag... scary stuff.
http://www.skepticalscience.com/Climate-Change-The-40-Year-D...
Re: Antarctic CO2 Hit 400 PPM for First Time in 4M Years
#4The worst thing is that we can't stop it when it will be too late. This doesn't work like a switch. Even if we would drastically cut all CO2 emission those levels would not drop in our lifetimes.
Indeed. The Earth is large and difficult to steer.
Re: Antarctic CO2 Hit 400 PPM for First Time in 4M Years
#5Assuming the fossil record and all of our measurements and assumptions about our measurements are correct. It's not like anyone was there, writing this stuff down at the time.
Re: Antarctic CO2 Hit 400 PPM for First Time in 4M Years
#6Up from preindustrial levels of 280 ppm. More: https://en.wikipedia.org/wiki/Carbon_dioxide_in_Earth%27s_at...
Re: Antarctic CO2 Hit 400 PPM for First Time in 4M Years
#7Assuming the fossil record and all of our measurements and assumptions about our measurements are correct. It's not like anyone was there, writing this stuff down at the time.
https://en.wikipedia.org/wiki/Ice_core
Ice was there and recorded it :/
Re: Antarctic CO2 Hit 400 PPM for First Time in 4M Years
#8NEW ACHIEVEMENT UNLOCKED! YAY WE DID IT - wait a sec...
Re: Antarctic CO2 Hit 400 PPM for First Time in 4M Years
#9No no, that just won't do. Math and modeling doesn't allow us to draw conclusions about things we can't directly observe. Someone had to be there and directly count the co2 molecules with their own eyes or it doesn't count as evidence.
Re: Antarctic CO2 Hit 400 PPM for First Time in 4M Years
#10Nice visualization from NASA: https://svs.gsfc.nasa.gov/vis/a010000/a011700/a011719/11719-...