A nature-based negative emissions technology able to remove atmospheric methane and other greenhouse gases

Atmospheric Chemistry and Greenhouse Gases

A New Laser Based Approach for Measuring Atmospheric Greenhouse Gases

In 2012, we developed a proof-of-concept system for a new open-path laser absorption spectrometer concept for measuring atmospheric CO2. The measurement approach utilizes high-reliability all-fiber-based, continuous-wave laser technology, along with a unique all-digital lock-in amplifier method that, together, enables simultaneous transmission and reception of multiple fixed wavelengths of ligh...

The GAINS Model for Greenhouse Gases: Emissions, Control Potentials and Control Costs for Methane

Estimation of greenhouse gases emissions from urban traffic: a case study of Hamadan city

Background and Objective: Transportation sector generates the largest share of greenhouse gas emissions (CO2 and CH4) which causes global warming. “Stop-and-go” driving and congested traffic flow results in a decrease in average car speeds, an increase in traffic incidents, and finally escalates GHGs emissions. Hence, congestion is directly related to carbon emissions. The objective of this stu...

Isotope Aided Studies of Atmospheric Carbon Dioxide and Other Greenhouse Gases

Ten air standards in high-pressure aluminium cylinders were prepared, covering a specified range of CO2 concentration and C and 18O isotopic composition, to be used for laboratory intercomparisons with the primary aim of merging global atmospheric CO2 C data sets. After establishing the stability of the standards, five were circulated between four laboratories with established high precision gl...