The science of man-made global climate change is irrefutable. New heat records, drought worse than the Dust Bowl, epic floods, hurricanes and tsunamis: the signs of ecological collapse are everywhere. Yet politicians financed by climate change deniers continue to delay action, fearing its effect on bottom-line profits. What, then, can we do to reverse course without wrecking our economies? Today we’ll speak with two eminent scientists, a conservation biologist and an environmental engineer, engaged in projects that could help us avert global climate collapse