The problem with this line of thinking is three fold: first, it is human nature to want the society in which you live to be acceptable based on your own views, especially when said views are considered very important to you. This phenomenon really has nothing to do with Christianity, or religion in general as people from all backgrounds and cultures want law to reflect their moral and philosophical view points. You're claiming religious beliefs should not be considered when making laws (which I don't necessarily disagree with) because it's exclusive, but your stated desire for an absolute denial of any and all religious influence is JUST AS exclusive, not to mention impossible to categorize/enforce since people can (and quite often do) share moral concepts found in religious text without being religious themselves.
Secondly, I'm (genuinely) interested to understand how you think this country's government is being overrun by laws based on religious text so much that it needs to be stopped, when the truth is that America is becoming an increasingly secular society, with laws illustrating this. The only thing I can think of off the top of my head is laws against gay marriage, which states are increasingly overturning. Abortion laws are just as much influenced by secular moral viewpoints as they are religious ones, so I personally don't count that. Granted its late and I'm tired, but I'm at a loss as to what else you could mean, unless of course you're counting Christian concepts that happen to be universal (ie: laws against murder, theft, etc).
Finally, it's a gross misunderstanding that the Bible claims (and most Christians believe) that the earth cannot be negatively affected by our actions. Most charities and countless environmental organizations are founded by Christians. The reason? Because that 2,000 year old book says that the earth is a gift that humans must take care of, and there are several passages that specifically talk about man's actions hurting the environment as well as god's displeasure with man's irresponsibility towards the environment. Yes, sadly there are "religious" people who don't understand that, but they are the minority. Politicians always work for the lowest common denominator and use this misinformation to get these few fools riled up. These politicians do this to cover up their own intentions for fighting environmental regulations (ie: money, simple partisanship, etc). It's sad and incredibly infuriating to see it happen and even more so to see people look at this idiots and group all religious people under this banner. The truth is, religion is not the problem. Religion at its most basic is a collection of moral concepts that urges people to live with integrity, compassion and selflessness. But being founded and practiced by people, it is not protected from the inherent flaws of human nature, just like everything else in life. And like everything else in life, it's the loud few that ruin it for everyone. All this is to say that it is factually incorrect to say that the BIBLE states and CHRISTIANS don't believe humans can negatively affect the environment; it's just desperate politicians using the ignorance of a select few. And honestly, I would lay money down on the fact that the majority of people who cite religion for denying global warming are lying; they're just claiming "religious beliefs!" To cover their own lack of scientific understanding and economic/political bias.
