In their third and final presidential debate, Barack Obama and John McCain batted their plans back and forth on environmental issues like oil dependence and climate change, but didn’t offer too many new ideas. (Grist — Kate Sheppard)

CNN looks at the presidential candidates’ plans for investing in infrastructure, highlighting John McCain’s focus on cutting back earmarks and Barack Obama’s proposal to create an infrastructure bank. (Tami Luhby)

With the financial crisis and $700 billion bailout package dominating conversation in Washington and on the campaign travel, political candidates are avoiding a central economic issue — the need to reinvest in our crumbling infrastructure. (Congressional Quarterly — Colby Itkowitz)

Taking a group of reporters along for his Amtrak ride home from Washington D.C. to Wilmington, Delaware, vice-presidential candidate Joe Biden promises “the most train-friendly administration ever” if the Democratic ticket is elected. (Politico — Ben Smith)

Standing before a crowd of 84,000 at the Democratic National Convention in Denver, Barack Obama made some key points on energy reform, arguing that the U.S. could end its dependence from oil from the Middle East in 10 years and pledging to spend $150 billion in that same time period on renewable energy. (Grist)

While Democrats and Republicans have few options for offering immediate relief for Americans burdened by high gas prices, both sides are hoping they can capitalize on the issue come November. (New York Times — Carl Hulse)

McCain and Obama both claim they would radically change our energy policy if they were elected president, with the Arizona Senator calling for increased production and the Democratic nominee advocating for alternative fuel development and lower consumption. (McClatchy — David Lightman)