« previous next »

Author Question: By how much has Earth's atmospheric CO2 concentration increased since the year 1800? What will be ... (Read 52 times)

jc611

  • Hero Member
  • *****
  • Posts: 552
on: Jul 14, 2018
By how much has Earth's atmospheric CO2 concentration increased since the year 1800?
 
  What will be an ideal response?

Question 2

How do we know this?
 
  What will be an ideal response?


mtmmmmmk

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jul 14, 2018
Answer to Question 1

389 ppm  280 ppm = 109 ppm (answer written in 2009)

Answer to Question 2

Keeling's data show that the mean atmospheric CO2 level for today is around 389 ppm. The ice core measurements show that the preindustrial CO2 concentration (the value circa 1800) was about 280 ppm, so the CO2 concentration has increased by 109 ppm.

The average rate of increase in the CO2 concentration since 1800 has been 109 ppm/209 yr, or about 0.5 ppm /yr.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Layers are deposited parallel to Earth’s surface. Younger layers are deposited on top of older layer Layers are deposited parallel to Earth’s surface. Younger layers are deposited on top of older layer
Atmospheric Optical Phenomena Atmospheric Optical Phenomena
Precession of Earth Precession of Earth
You deposit $2000 each year into an account earning 4% interest compounded annually. How much ... You deposit $2000 each year into an account earning 4% interest compounded annually. How much ...
A promissory note has a face value of $6000 and it has a date of issue of June 1 this year. The ... A promissory note has a face value of $6000 and it has a date of issue of June 1 this year. The ...
Male to Female Sex Ratio at Birth vs. PCB Concentration in Maternal Serum Male to Female Sex Ratio at Birth vs. PCB Concentration in Maternal Serum
Video: The Lac Operon in E. Coli

For a complete list of videos, visit our video library