How about you apologise for every single application of man's 'rational' thought that has caused harm to others or the environment, and we call it even? From the sharpened stone used against another, to the nuclear bombs and CO2 emissions?
Actually, how bout we dont. How about you admit that your faith in science is just a convenient way for you to duck any moral responsibility for anything bad, ever? How about you reevaluate the greater evil?
I'm a strong environmental advocate. Science has ALLOWED us also to view that our poor industrial practices have harmed the environment (once again, science as a tool here) and we now need to make a decision (based on our political philosophy etc) about action.
Seriously Iron, I thought you were smarter then this. Do some heavy reading- science is as you pointed out- a "how" tool. Atheism is not a faithful endorsement of science as the only alternative to god. It’s simply a rejection of the evidence put forward in relation to claims made about "gods" (my atheism is not even "there is no god"; although I think it’s logically improbable).
Once you realise your alone with just your fellow man in this universe, that's when the true knowledge begins. You’re free to adopt any philosophy to fill the gap. Admittedly, yes you can still be immoral, be a sociopath, be like Stalin for instance, but unlike religion, these "immoral" actions are not motivated through atheism as it is not a belief- its a statement, much like hypothesis testing-
For eg: I'm sure you can follow, we will do it in respect to the Christian god.
Ho= The Christian god does not exist (default state)
Ha= The Christian god does exist (the proposition of a Christian to the atheist)
Atheists test this at any level of significance and conclude that the calculated t-value falls short of the rejection region. Therefore, at the x% level of significance, there is not enough evidence to reject the null hypothesis. You will remember from Stat101 that we can not actually say we
accept the null hypothesis, this would not be logical (the reason that militantly strong atheism is just as bad as theism).
Once you've reached this conclusion, your on own, I admit. I think this is what you’re scared of.
Oh, on moral duties I read Peter Singer