Not necessarily, if at all, can science do that. It may offer the opportunity to be a better, more virtuous people. But it does only that, and we are speaking somewhat anthropormorphically in attributing that much to it really.
Can science define or defend the value of a human life? Can it teach us that stealing is wrong; indeed, can it define theft? Can it say anything about our responsibility towards the environment or, more importantly, one another?
Obviously not. To be sure, it may tell us that if we continue on such and such a road we might drive ourselves into extinction. But that's all it can do. Whether we ought to do such and such else so that we will not become extinct is a question of value. Science only tells us what will happen should we construct a building without the proper strengths, or perhaps even what may happen if we continue on a certain course with no variation. It does not, will not, and cannot tell us what we should do with the information it supplies.
People make those judgments, and they are not argued in the realm of science. They're argued in the realm of philosophy, the realm where we might actually be able, by conscious debate and a reasoned consideration of who we are rather than merely that we are, conclude what are and are not good things to do. Science provides facts; however useful they may be, they are ultimately very rote and, by themselves, without meaning. We provide value and virtue. We are above science.
Science by itself lacks virtue. Those who pray at its altar pray to a valueless void.