On a field ringed by rolling green hills in Iceland, fans attached to metal structures that look like an industrial-sized Lego project are spinning. Their mission is to scrub the atmosphere by sucking carbon dioxide from the air and storing it safely underground. Just a few years ago, this technology, known as “direct air capture,” was seen by many as an unrealistic fantasy. But the technology has evolved to where people consider it a serious tool in fighting climate change. The Iceland plant, called Orca, is the largest such facility in the world, capturing about 4,000 metric tons of carbon dioxide […]