The world’s new largest carbon capture plant, named Mammoth, doesn’t bring the world significantly closer to reducing the carbon dioxide emissions threatening the planet’s environment by contributing to global warming. But the faciility in Iceland is a notable as a step in the right direction, says Klaus Lackner, a professor in the School of Sustainable Engineering and the Built Environment, part of the Fulton Schools, and director of ASU’s Center for Negative Carbon Emissions.  Mammoth is many times larger than other such facilities and can absorb almost 40,000 tons of carbon from the air each year. A carbon capture plant being built in Texas by a US-based company is expected to remove 500,000 tons of carbon annually.