Adding to the skepticism over
the feasibility of air capture is that there are other, cheaper ways to create the so - called negative emissions.
Not exact matches
The University
of Kentucky, another coal state university, will partner with Shanxi Coal International Energy Group and
Air Products and Chemicals Inc on a project
feasibility study for a 350MW supercritical coal - fired power plant that can
capture 2 million tonnes
of CO2 a year.
Proposed methods
of extraction such as bioenergy with carbon
capture and storage (BECCS) or
air capture of CO2 imply minimal estimated costs
of 104 - 570 trillion dollars this century, with large risks and uncertain
feasibility.
Zara L'Heureux from Columbia University then described recent work from the Centre for Negative Carbon Emissions in Arizona, demonstrating the
feasibility of direct
air capture (DAC) for carbon sequestration.