[freebeard]

I visited Phys.org for the first time in a while.

phys.org: A catalyst for converting carbon dioxide, the main cause of global warming, into ethylene using vitamin C

phys.org: A high-efficiency photocatalyst for converting carbon dioxide into environmentally friendly energy using sunlight

Just when CO2 levels are reaching an acceptable level, do-gooders want to take us back to plant-starvation levels. Once carbon removal becomes a revenue stream, what's going to turn it off again?

phys.org/news: Study underscores uncertain costs of iron fertilization

phys.org: New electrochemical technology could de-acidify the oceans—and even remove carbon dioxide in the process

Ocean acidification does seem to be a problem.