Oceania

A tubular photobioreactor, which can be used to feed microalgae with concentrated CO₂. Photo by AlgaEnergy/Wikimedia Commons

Carbon capture and utilisation using algae: Projects are not living up to their own hype

Oct 8, 2026

A large coastal sewage treatment plant. Photo by Doc Searis/Flickr

Rivers, bays, oceans: Marine and freshwater environments at risk from carbon removal companies that are altering water chemistry

Jul 7, 2026

A phytoplankton bloom. Photo by Steve Jurvetson/Flickr

Artificially fertilising the ocean in order to sink carbon as a climate solution is gathering momentum

Jun 24, 2026

Storm clouds over the sea.

Geoengineering the clouds: Solar radiation management in the lower atmosphere

Nov 4, 2025