Leave your feedback Share Copy URL https://www.pbs.org/newshour/show/researchers-scramble-to-create-co2-busting-technologies Email Facebook Twitter LinkedIn Pinterest Tumblr Share on Facebook Share on Twitter Transcript With carbon dioxide comprising 80 percent of greenhouse gases, researchers are creating technologies to neutralize emissions and reverse their effects on global warming. Read the Full Transcript Notice: Transcripts are machine and human generated and lightly edited for accuracy. They may contain errors. PAUL SOLMAN, NewsHour Economics Correspondent: Global warming. Almost all climatologists agree it's a clear and future danger. Wallace Broecker, a geochemist at Columbia University, has been blaming his fellow humans for over 30 years. WALLACE BROECKER, Lamont-Doherty Earth Observatory: The way we're going now, we're not being responsible. We're saying, "We want energy as cheap as we can get it, damn the future." PAUL SOLMAN: Meanwhile, says Broecker, the world's population is heading toward nine billion. If current trends continue, carbon in the atmosphere may triple by the end of the century. WALLACE BROECKER: And triple is something like a six-degree centigrade warming. We would certainly melt the Greenland icecap and probably release the West Antarctic ice sheet, which together would raise sea level about thirty-six feet. PAUL SOLMAN: Thirty-six feet? WALLACE BROECKER: Yes. So that would mean all coastal property throughout the whole world would be destroyed, unless you diked it off.