That's right, Humans have increased atmospheric CO2 AT LEAST 100 times

"We have caused the same changes over 100 years."
Yes and here is how we have done it.
Keep in mind that it has been known since 1859 that CO2 warms the atmosphere.
Here is a brief history of major changes in atmospheric CO2 over the past 450,000 years.
Notice how long it took to change by roughly 100ppm each time, from natural causes.
Then look at the last line and how fast it is. That's what humans have done.
-----------
450,000years ago, it was at ~200ppm and it took ~50,000 years to go to ~ 280ppm.
It was at ~280ppm 400,000 years ago and it took 50,000 years to go down to 190ppm.(Ice age)
It was at ~190ppm 350,000 years ago and it took 25,000 years to go up to 300ppm.
It was at ~300ppm 325,000 years ago and it took 74,000 years to go down to ~180ppm.(Ice age)
It was at ~180ppm 260,000 years ago and it took 20,000 years to go up to ~300ppm.
It was at ~300ppm 240,000 years ago and it took 20,000 years to go down to ~200ppm.(Ice age)
It was at ~200ppm 220,000 years ago and it took 20,000 years to go up to ~260ppm.
It was at ~260ppm 200,000 years ago and it took 60,000 years to go down to ~180ppm.(Ice age)
It was at ~180ppm 140,000 years ago and it took 15,000 years to go up to ~290ppm.
It was at ~290ppm 125,000 years ago and it took 100,000 years to go down to 180ppm.(Ice age)
It was at ~180ppm 25,000 years ago and it took 24,800 years to go up to ~280ppm.
It was at ~280ppm 200 years ago and it took 180 years to go up to 400ppm, today.
----------------
That's right, Humans have increased atmospheric CO2 AT LEAST 100 times faster than the fastest that nature has done it in the last 450,000 years - at least.
For 800,000 years atmospheric CO2 was between 170ppm-300ppm. It's now 400ppm, 33% higher than at any time in at least the last 8,000 centuries.

Comments

Post a Comment

Popular posts from this blog

Climate Change Skeptics Lash Out At New Global Warming ‘Hiatus’ Study That Questions Ocean Temperature Measurements

Image
Share on facebook 227 Share on twitter 22 Share on linkedin Share on google_plusone_share More Sharing Services 128 An estimated 35,000 walruses are pictured crowding on a beach near Point Lay, Alaska, because of a lack of sea ice in this September 2014 photo. A study published June 4, 2015, refuting the notion that the Earth’s temperature rise has been interrupted since 1998 was lambasted by the usual skeptics and their supporters.  Corey Accardo/NOAA/NMFS/AFSC/NMML/Via Reuters A new climate study was released Thursday that refutes the claim that there’s been a slowdown, or “hiatus” in the rate the Earth is warming, but some conservative-leaning media sites skipped covering the study itself and chose instead to promote the views of the minority of climate change deniers, such as  Christopher Monckton . For example, the Drudge Report, an immensely popular headline aggregator operated by conservative Matthew Drudge, promi...
Read more

Global warming could drive world temperatures up 7 degrees by 2100

Another piece of the  global warming  puzzle has been revealed. According to new research published on Jan. 1 in the journal  Nature , increased levels of carbon dioxide in the atmosphere will reduce the number of clouds that form. This, in turn, will cause temperatures to rise much higher than previous climate-change models have predicted. According to this new research, global temperatures could rise 4 degrees Celsius or 7.2 degrees Fahrenheit by the year 2100, and twice that by 2200. Lead researcher Steven Sherwood at the Climate Change Research Center at Australia's University of New South Wales, told  The Guardian  that this level of climate change would be "catastrophic rather than simply dangerous. For example, it would make life difficult, if not impossible, in much of the tropics, and would guarantee the eventual melting of the Greenland ice sheet and some of the Antarctic ice sheet."   In a  news release , Sherwood said this new...
Read more

Why Is Critical Technology to Stop Global Warming Stalled?

Image
Pumping CO2 underground can help fight climate change but remains untested for the most part March 12, 2015  | By  Howard J. Herzog  and  The Conversation US Injection of CO2 and other gases into geological formations has been practiced for many years.  Credit:  SaskPower There are many uncertainties with respect to global climate change, but there is one thing about which I have no doubts: we will not solve climate change by running out of fossil fuels. Understanding this leads to three posible pathways we can follow to lower greenhouse gas concentrations, and explains why I’ve chosen to focus  my research  on carbon capture and storage. We can: continue to burn fossil fuels with little or no restrictions. We will blow by atmospheric CO2 concentrations of 450 parts per million (ppm), the level many scientists think is dangerous to exceed, and we will keep on going. We have enough fossil fuels to easily go above 1,000 ppm. The impac...
Read more