Grant Mulligan

Grant Mulligan

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Grant Mulligan is a writer, investor, and conservationist. He started his career as a wildlife biologist, breeding and releasing endangered species back to the wild, before moving into roles implementing and investing in water, agriculture, forestry, and energy projects around the world. He has a Master of Environmental Management degree from the Yale School of the Environment and is a Roots of Progress Institute Fellow. You can find his writing on Substack at Progress Accumulation

Night view of a city skyline with illuminated skyscrapers and a bridge, home to a self-healing power grid, all reflected in the water below.
A new generation of self-healing tools could make the U.S.'s aging power grid far more resilient against modern threats.
Two people sit in wicker chairs outdoors, holding microphones and having a conversation about energy abundance. Other people are visible in the blurred background.
Barriers to energy abundance — and how to overcome them — were front and center at Progress Conference 2025.