Market to remove global-warming carbon dioxide from atmosphere expected to reach $1 trillion, carbon confab hears

Tel Aviv-based SeeTree partners with US afforestation company GreenTrees, to develop machine-learning-based approach to calculating carbon sequestration for carbon credit market

Annual review predicts 12% cut in emissions by 2030, despite pledge of 27% to UN; just 19% of energy from renewable sources expected by that date, compared to target of 30%

Helios claims that replacing carbon with sodium to prise oxygen out of iron ores -- an early stage in steel manufacturing -- can slash carbon emissions, energy and production costs

RepAir Carbon Capture claims that its electrochemical method is cheaper, more energy-efficient, and more scaleable than competitors

Start-up Airovation Technologies has developed chemical method to extract soda ash from CO2, which can be reused in glass production process