350 Ventura County Climate Hub is a left-of-center environmentalist group located in Ventura County, California. The group aims to eliminate conventional energy sources in California and supports the Green New Deal, a proposal to expand government control of the economy on environmentalist pretexts. 
In 2019, 350 Ventura proposed a property tax that would tax businesses per parking space they owned. The stated purpose of the tax would be to reduce the amount of cars on the road. 
In June 2020, 350 Ventura laid out 14 California state-level policy proposals. The recommendations included a ban on new oil drilling and 2500 ft buffer zones between oil and gas operations to ultimately eliminate oil and gas production in the state. 
Activists working for or with 350 Ventura include Jan Dietrick, Chris Tull, Diana Kubilos, Michelle Nosco, Ron Whitehurst, and Todd Shuman. 
350 Ventura County Climate Hub is a branch of the national 350.org, which is a 501(c)(3) non-profit organization.