Kelvin has been active in the environmental movement since the late 1980’s and has been employed by some of Australia's largest nature conservation organisations.
His commitment to the protection of rainforest biodiversity commenced in 1990 when he joined the Melbourne Rainforest Action Group where he actively supported the campaign to end the importation of rainforest timbers. The work of the Group achieved an 80% reduction of tropical sawn timber imported into Melbourne from Malaysia between 1988 and 1992.
In January 1998 he conceptualized and initiated the development of Rainforest Rescue as a non-profit organisation. As the CEO and Founding Director, he created innovative and engaging fundraising programs that drove growth for 15 consecutive years. Significant contributions were made to rainforest purchase, protection and rehabilitation projects in many countries around the world. Kelvin developed and implemented the Daintree Buy Back and Protect Forever Project that has resulted in the purchase of over thirty properties in the Daintree Lowland Rainforest, all with funds raised from the community. He is also a co-founder of Big Scrub Rainforest Day, a long-running annual event established in 1999 to educate the community and inspire individuals in the restoration of rainforests in northern New South Wales.
In January 2015 he was instrumental in establishing Rainforest Trust Australia and was the CEO and Executive Director from April 2016 to July 2018. This achieved many conservation outcomes including contributions to the purchase of Caloola Station, a 44,000-acre property near Cooktown, the Misty Mountains property on the Atherton Tablelands and nine properties in the Daintree Lowland Rainforest. Additionally, rainforest restoration projects were established in Far North Queensland and Northern NSW and contributions were made to dozens of international land purchase and protection projects saving millions of hectares.
For the past twenty years, as a founder, employee, consultant and voluntary advisor he has applied his expertise and skills on behalf of rainforest not-for-profit organisations to develop their potential.
On the 23rd Of August 2018, he founded the Rainforest 4 Foundation to deliver outcomes for wildlife, climate, people and planet through purchasing land, creating new protected areas, stopping and reversing the impacts of development, and restoring rainforest ecosystems damaged in the past.