Ocean-based carbon dioxide removal makes a lot of sense. The oceans are already carbon sinks that absorb about 30% of global carbon emissions. And the concentration of CO2 is higher in water than in air. Caitlin McDermott-Murphy at NREL looks at a new study of the technologies under development, and the opportunities for offshore wind and wave energy to power it. There are nature-based solutions like vast seaweed or algae farms. There are also … [Read more...]
16 innovative firms driving Aviation’s transition to net-zero
The Sustainable Aviation Challenge has identified 16 innovative firms that can accelerate the development and adoption of sustainable aviation fuel and other propulsion solutions. Aviation accounts for 2% of global emissions and, so long as lightweight compact clean aviation fuels are unavailable, this number is likely to increase along with air travel projections. Gianluca Gygax at the World Economic Forum lists the 16 firms, who will now be … [Read more...]
Farming Algae for Carbon Capture: new research cuts “fouling.” Scale-up in 3 years?
Natural marine algae already account for 50% of global CO2 removal. Farming it at scale in artificial tanks or tubes would take up a fraction of the land footprint of terrestrial plants. And algae can grow up to 50 times more quickly than land-based plants. It could be a game-changer that brings carbon capture costs down and make it a commercial reality. Here, David Chandler at MIT explains how new research there can make farming algae much more … [Read more...]