Greg is the Founder of Pacific Whale Foundation and author of numerous books, scientific papers, and popular publications on cetaceans. A pioneer in noninvasive humpback whale research in the mid-1970s, Greg founded Pacific Whale Foundation in 1980 to educate the public, from a scientific perspective, about whales and their ocean habitat.

Greg oversaw the longest running humpback whale research program off Australia (began in 1984), and has studied humpbacks in Hervey Bay since 1987. He was a world leader in addressing whale protection issues, and has pioneered responsible dolphin and whalewatching programmes throughout the Pacific.

Greg was an Invited Participant to the International Whaling Commission’s Scientific Committee and was a contributor to the subcommittees on Whalewatching, Southern Hemisphere Whales, and Human Induced Mortality in Marine Mammals. He also co-led the United Nations Environmental Programme’s Regional Workshop on Marine Mammal Watching in the Wider Caribbean Region, led the Indian Ocean Rim Association Whale and Dolphin Workshop, and has directed trainings for Whale and Dolphin Watching in Oman. Greg has also served multiple roles on the Hawaiian Islands Humpback Whale National Marine Sanctuary Advisory Committee.