What are the latest carbon capture technology developments?

Carbon capture technology is experiencing a pivotal acceleration in 2025, driven by a convergence of direct air capture (DAC) breakthroughs, novel sorbent materials, and scaled-up pilot deployments that are finally beginning to close the cost gap that has long hampered commercial viability. The sector is moving from proof-of-concept into early industrial reality, with costs for leading DAC facilities trending toward the $300–400 per tonne range — still above the $100 target, but dropping faster than most analysts predicted three years ago.

One of the most significant recent developments comes from Climeworks, whose Mammoth facility in Iceland — the world's largest operational DAC plant — continues to provide critical performance data on solid sorbent cycling at scale. Meanwhile, researchers at MIT's Energy Initiative published findings this month highlighting a new class of metal-organic frameworks (MOFs) that demonstrate CO₂ selectivity improvements of over 40% compared to previous benchmarks under real-world humidity conditions. This matters enormously because moisture has historically degraded sorbent efficiency, inflating energy costs. The MIT work suggests next-generation sorbents could cut parasitic energy loads by a meaningful fraction, potentially unlocking sub-$200 per tonne economics within the decade.

On the geological storage front, the International Energy Agency (IEA) has been tracking a sharp uptick in carbon storage certification projects, particularly across the North Sea and the US Gulf Coast. The IEA's latest tracking data shows over 50 new CCS projects reached final investment decision or advanced permitting stages in the first half of 2025 — a record pace. Point-source capture on cement and steel facilities is leading this wave, as these hard-to-abate sectors face increasing regulatory pressure under both EU carbon border adjustment mechanisms and US EPA frameworks. Electrochemical capture methods, which use pH-swing chemistry to avoid thermal energy penalties, are also gaining serious R&D momentum, with several startups securing Series B funding rounds in Q1 2025.

The space to watch most closely in the coming months is the intersection of low-cost renewable energy and DAC deployment — specifically whether stranded solar and wind assets in regions like the US Southwest and Chile can power DAC facilities at utilization rates that finally make the economics sing. If electrolyzer-style learning curves apply to DAC, the cost trajectory could surprise even optimists.

— Helios