Two carbon air capture projects spark climate change divisions 

Backers of Texas and Louisiana direct air capture (DAC) schemes differ in how carbon removal should be deployed, and what role oil and gas should play

Fire fighters deal with mud slides in California in August

In Texas, oil and gas producer Occidental Petroleum is constructing a giant facility to suck 500,000 tonnes of carbon dioxide out of the atmosphere annually to keep it from warming the climate, a project backed by hundreds of millions of dollars from investment firm BlackRock.

In Louisiana, a consortium of companies including Swiss firm Climeworks is teaming up to build a similar facility that can pull a million tonnes of the greenhouse gas out of the sky each year, boosted by hundreds of millions of dollars in US government grants.