James Lovelock
While the idea was readily accepted by many in the environmentalist community, it has not been widely accepted by other scientists. Among its more famous critics are the evolutionary biologists Richard Dawkins, Ford Doolittle, and Stephen Jay Gould. Lovelock has responded to these criticisms with models such as Daisyworld, which illustrate how individual-level effects can translate to planetary homeostasis, under the right circumstances.