First Satellite Measurements of Carbon Dioxide in the Earth’s Atmosphere (From the SI-1 Spectrometer Aboard the Meteor Satellite in 1979)

2020 ◽  
Vol 56 (4) ◽  
pp. 401-404
Author(s):  
Yu. M. Timofeev ◽  
A. V. Polyakov ◽  
Ya. A. Virolainen ◽  
W. Döhler ◽  
D. Oertel ◽  
...  
2020 ◽  
Vol 82 (7) ◽  
pp. 470-476
Author(s):  
Rick Martin ◽  
Eun Ju Lim

Carbon dioxide (CO2) is a colorless, odorless gas that makes up a small fraction of Earth's atmosphere. Despite its inconspicuous nature, CO2 plays an integral part in sustaining life on Earth, a part that is largely unknown or underappreciated by the general public. We present a set of activities designed to help students overcome the most common misunderstandings about CO2, from its sheer existence as a mass-containing molecule to its complementary roles in photosynthesis and respiration. Through these activities, students will be able to apply their knowledge to real-world phenomena, including weight loss and global warming.


2016 ◽  
Author(s):  
Debra Wunch ◽  
Paul O. Wennberg ◽  
Gregory Osterman ◽  
Brendan Fisher ◽  
Bret Naylor ◽  
...  

Abstract. NASA's Orbiting Carbon Observatory-2 (OCO-2) has been measuring carbon dioxide column-averaged dry air mole fractions, XCO2, in the Earth’s atmosphere for almost two years. In this paper, we describe the comparisons between the OCO-2 version 7Br retrievals and XCO2 estimates from OCO-2's primary ground-based validation network: the Total Carbon Column Observing Network (TCCON). The OCO-2 XCO2 retrievals, after bias correction, agree well globally with the TCCON for nadir, glint, and target observations, with median differences less than 0.5 ppm and RMS differences typically below 1.5 ppm. Target observations over TCCON stations correlate best with the TCCON data (R2 = 0.83) on a global scale. At local scales, the target comparisons reveal residual biases likely related to surface properties and aerosol scattering. It is thus crucial to continue measurement comparisons with TCCON to monitor and evaluate the OCO-2 XCO2 data quality throughout its mission.


2021 ◽  
Vol 16 (3) ◽  
pp. 32-37
Author(s):  
Salavat Suleymanov ◽  
Svetlana Sochneva ◽  
Nikolay Trofimov ◽  
Elmir Gallyamov

The scientific article provides an analysis of data on the dynamics of changes in the concentration of carbon dioxide in the Earth’s atmosphere, its relationship with an increase in the average temperature of the Earth’s surface and further measures related to the decarbonization of industry. When analyzing theoretical materials, it was revealed that the concentration of carbon dioxide in the Earth’s atmosphere increased from 270 to 419 parts per million (ppm), which ultimately led to an increase in temperature on the planet by 1.1°C over the past 150 years. If the current rate of growth in the concentration of greenhouse gases in the atmosphere is maintained, the increase in the average global temperature may exceed 4°C, which will have catastrophic consequences. In terms of CO2 emissions, China ranks first in the world (28,8% of the total global emissions), followed by the United States (14,5%). Next are the European Union (9,7%), India (7,3%), Russia (4.5%) and Japan (3,3%), etc. To keep the average temperature rise within 1.5°C, the share of renewable energy sources in electricity generation should increase in 2050 to at least 70-85 percent. At the same time, the share of natural gas, provided that technologies for capturing and storing CO2 are used, will decrease to 8% (from 3 to 11% according to different scenarios), while the share of coal will decrease to almost 0% (0-2%)


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