Unprecedented anthropogenic CO2 buildup in the atmosphere is 'religious?' There are plenty of non-religious scientists who'd disagree. The evidence is enough to warrant concern. No higher-power is needed to see reality.
Religion is more commonly used to justify greed than to respect natural limits, so I'm surprised those groups are showing much concern. The usual position is that nature must yield to our increasing numbers and pollutant volumes lest some Biblical mandate be violated (see Genesis 1:28).
E.A.
http://enough_already.tripod.com/ If any other species behaved like Man we'd call it a plague.