Environmentalism - the new sky fairy?

Spotted this is today's Oxford Mail. An environmentalist has been allowed by the courts to claim for unfair dismissal owing to his environmental beliefs:

An Oxford environmentalist, sacked from one of the country’s largest property companies, is to claim he was unfairly dismissed because of his views on climate change. Tim Nicholson, 41, told a pre-hearing review his views on the environment put him at odds with other senior employers at Grainger plc — and contributed towards his dismissal. Mr Nicholson was told he could make a claim under the Employment Equality (Religion and Belief) Regulations 2003. [From Environmentalist to fight sacking at tribunal (From Oxford Mail)]

So, is it greenery matter of faith? Or science?