Need to Know” anchor Jeff Greenfield explores why it now takes nearly four times as long to complete infrastructure projects in the United States than it did in the 1970’s.
energy

Germany’s green revolution
What would it take to transform the whole country’s electric grid–to shut down all of its old power plants, and move to a system that generates electricity exclusively from renewable resources?

Ask the experts: Alternative energy
We heard both candidates discuss alternative energy at this week’s presidential debate in Denver. President Obama said, “we’ve got to look at the energy sources of the future, like wind and solar and biofuels, and make those investments.” The support for alternative energy sources, however, is not universal. Need to Know asked leading experts in […]

The case against nuclear power
Maria Hinojosa interviews Damon Moglen, Climate and Energy Director for Friends of the Earth, who says nuclear power will not solve our country’s energy and environmental problems.

Inkjet printing solar panels: cheap and almost green
Solar energy is one of the easiest and greenest of the renewable energy sources, but its high price is holding it back. One of the most promising new research developments involves printing thinner, cheaper panels with an inkjet.

Is a nuclear renaissance possible?
Will nuclear power itself be a casualty of the tragic events in Japan? Robert Fri explains how we can, and why we should, keep it in the mix.

Invisible lines: The dangers of natural gas pipelines
Need to Know presents the work of Brett Shipp, an award-winning reporter for WFAA in Dallas, who investigated the cause of a fatal natural gas pipeline explosion in June.