AllahSolar-powered device captures carbon dioxide from air to make sustainable fuel
Direct air capture of CO2 for solar fuel production in flow - Nature Energy
Photocatalytic conversion of CO2 typically uses concentrated feeds, hindering the direct conversion of ambient CO2 to value-added products. Kar et al. report a flow reactor that produces syngas (a mixture of CO and H2) through on-site utilization of air-captured CO2 using light.
This reminded me of that video when the covid lockdown caused the air to be so much cleaner that a mountain range could be seen from ~200km away:
COVID-19: Distant mountain range seen in Kashmir after lockdown clears skies
you can see it’s peak around 350 km away