Explore Climate Tech Solutions
Discover innovative technologies across all stages of development. Use filters to find solutions that match your specific needs.
Discover innovative technologies across all stages of development. Use filters to find solutions that match your specific needs.
Algae-based carbon capture systems use photosynthetic microorganisms to absorb CO2 from industrial emissions or atmosphere, converting it into biomass for biofuels, food, and chemicals with capture rates of 10-50 tons CO2 per hectare daily. These systems achieve 90%+ CO2 capture efficiency while producing valuable biomass products. Companies like Algae Systems and Origin Materials operate pilot facilities with costs targeting $100-300 per ton of CO2 captured.
Seaweed carbon farming cultivates macroalgae in open ocean environments to sequester atmospheric CO2, with potential to remove 1-10 gigatons of CO2 annually if deployed at scale. Seaweed farms can sequester 20-35 tons of CO2 per hectare annually while producing biomass for food, feed, and biofuels. Companies like Climate Foundation and Running Tide are developing systems with costs targeting $50-150 per ton of CO2 removed.
Biochar is produced through pyrolysis of organic waste materials at 400-700°C in oxygen-limited environments, creating a stable carbon material that sequesters CO2 for 100+ years while improving soil fertility. Biochar application can sequester 1-3 tons of CO2 per hectare annually while increasing crop yields by 10-20%. Companies like Carbonfuture and Pacific Biochar produce biochar with costs of $200-500 per ton and carbon removal verification systems.
Enhanced Rock Weathering (ERW) spreads crushed silicate rocks on agricultural lands to accelerate natural weathering processes that remove CO2 from the atmosphere and store it permanently as bicarbonate ions. This process can sequester 0.5-2 tons of CO2 per hectare annually while improving soil pH and crop yields by 5-15%. Companies like UNDO and Lithos are conducting field trials with costs targeting $50-100 per ton of CO2 removed.
Accelerated natural carbon mineralization using crushed silicate minerals that could sequester gigatons of CO2 annually. Olivine mineral weathering permanently removes atmospheric CO2 through natural chemical reactions.
Biochar is created by heating organic biomass in low-oxygen environments (pyrolysis), producing a stable carbon material that can sequester carbon for centuries. High-quality biochar retains 70-80% carbon content and improves soil fertility, water retention, and crop yields. Each ton of biochar can sequester 2-3 tons of CO2 equivalent while providing agricultural co-benefits and waste management solutions.
Carbon Capture and Storage (CCS) captures CO2 emissions from industrial sources and power plants, then transports and permanently stores the CO2 underground. Current CCS projects capture over 40 million tons of CO2 annually , with costs ranging from $50-100 per ton for industrial sources.
Direct Air Capture (DAC) technology extracts carbon dioxide directly from ambient air using specialized chemical processes. Current systems can capture CO2 at concentrations as low as 400 ppm. The captured CO2 can be permanently stored underground or utilized to create useful products like synthetic fuels, chemicals, or building materials. Current costs range from $600-1000 per ton of CO2 , with targets to reach $100-200 per ton by 2030.