barocaloric
(2)
Pascal
Pascal is a Cambridge, Massachusetts climate-tech company commercializing solid refrigerants to replace the greenhouse-gas coolants that make air conditioners, heat pumps, and refrigerators bad for the climate. Spun out of Harvard in 2023, Pascal builds cooling systems around barocaloric materials - wax-like layered solids that absorb and release heat when squeezed and released - working at pressures low enough to run on today's mass-market HVAC hardware. The company raised an $8M seed round in 2024 and aims to eliminate refrigerant emissions while cutting cost and boosting efficiency.
Adam Slavney
Adam Slavney is the co-founder and CEO of Pascal, a Cambridge, Massachusetts startup commercializing solid-state refrigerants to replace the planet-warming gases inside air conditioners, heat pumps, refrigerators and data centers. A Stanford-trained chemist who studied perovskite solar cells before a Harvard postdoc in clean-energy economics, Slavney spun Pascal out of Harvard in 2023 around a class of barocaloric materials that respond to pressure two orders of magnitude more strongly than other solids. The company raised an $8M seed round in 2024 led by Engine Ventures, with Khosla Ventures participating, and later added a Series A to scale prototypes. Slavney's pitch is blunt: heating and cooling burn nearly 40% of the world's energy and the refrigerants doing it cause about 2% of global warming, and he wants to keep the cooling while deleting the climate cost.