Well actually had an argument but would you say that we needed nature since science has come so far these days? If science can clone sheep, create a bio-engineered cell and create GM crops then surely science can enhance nature for us and make it far more efficient to what we need it to be.
Sure there are ethical issues around us but what choice do we have since most of mankind is unwilling to give up modern day luxuries? We can plonk a wind farm down everywhere and use just electric cars as we still need the power to come from some sort of source.
Personally I think it's time that nature was adapted to our needs if we want to continue on this planet. But that's just my opinion what is everyone else's?