John worked as a mechanical engineer making components for the coal, oil and nuclear industries before becoming an environmental activist in the mid 1990's. He co-founded a successful recycling business in Brisbane before moving to Sydney to work with Greenpeace. He has a strong interest in the politics of technology and in social movement strategy, and, like many, is extremely concerned about climate change. He works part-time as a senior campaigner with the Greenpeace Australia Pacific climate change campaign.