Presidential candidates Republican Sen. John McCain and Democrat Sen. Barack Obama are back at this evening, debating from the campus of Belmont University in Nashville, Tenn… and I’m here on my couch watching and listening carefully to what they say, paying special attention to what they say about renewable energy.

Both have just touched on the renewable energy issue, mostly from the standpoint of weaning America from foreign sources of non-renewable petroleum. McCain says we need to take an “all of the above” approach that includes biofuels, wind and solar energy, as well as nuclear and domestic petroleum. Obama counters that we need to have an energy plan that frees us from foreign oil in 10 years time, once again, through renewable energy.

Obama says we each need to think about how we use energy and how we gather more petroleum and alternative energy sources. He says incentives and tax breaks for people who buy American-made, fuel-efficient vehicles are very important, as are home conservation efforts.

Pretty light on any specifics on either side on renewable energy… or any other issue for that matter.

I’ll keep my eye on them and update again if something comes up. Stay tuned…