Help me construct a catchy, yet scientifically accurate, headline for an article on the latest discovery in renewable bio-energy, while carefully handling the ethical dilemmas surrounding bio-energy sources. Propose 4 options.

Option 1 : " Rev olution ary Bio - E nergy Break through : H arness ing the Power of Nature for a S ustain able Future " \n Option 2 : " B ey ond F oss il Fu els : The Prom ising Future of Ren ew able Bio - E nergy " \n Option 3 : " B io - E nergy Revolution : How Science is Trans forming Our Energy Land scape " \n Option 4 : " E th ical Bio - E nergy : Bal ancing Progress with Res pons ibility " </s>