kerstin: i walk overer the peat bog once more with andrey sirir. rewetting project near moscow is the largest in the northern hemisphere, an international pilot project. the results show how rewetting doesn't just prevent fires but also prevents the release of more greenhouse gases. in the coming future the scientists want to work in russia's far north, in the huge peatlands of the permafrost regions. narrator: and that's all from "global 3000" for today. we're back next week, and, of course, we're always available online, too see you soon. [captioning performed by the national captioning institute, which is responsible for its caption content and accuracy. visit ncicap.org] ♪ melinda: divided nation. is race killing america? that is our topic today on "quadriga." welcome. race relations in the u.s. are at their lowesest points in decades. a majority of f americans say ty are bad, and getting worse. last week, the divisions widened oncece again, with renewed incidents of white police officers k killing b black peop. that triggereded mass prprotestd