Direct air capture of CO2

Direct air capture of CO2 could actually increase the level of greenhouse gas emissions, if renewable generation is insufficient and fossil fuels are still used to generate the electricity to run the capture.

If someday there is excess renewable energy capacity to power capture machines, then they could actually reduce the CO2 concentration, it seems to me.

However, the article's main point is valid: this method is worse than useless for the next few years, and it is probably a PR scheme meant to let out the pressure to reduce emissions.