Gore kept his cool despite the bravado of the 'Skeptical Environmentalist'.

Climate-challenged piggy bank urges closing of the 'carbon pollution loophole.'

MNN asks Al Gore about the claims that he's making a fortune off of climate change. The former vice president responds -- via iPhone texts.

More than just green ideas, "sustainability" also refers to the economy and social justice. But is the word being used to death?

Video: Former Vice President Al Gore discusses his new book and the choices Americans face on climate change.

Al Gore has the radical idea that more of our decisions should be made based on facts and reason.

Video: The former VP returned to '30 Rock' in honor of NBC's Green Week -- delivering an unexpectedly funny performance as the light bulb-changing janitor.

Al Gore hit NBC last week for Green Week and told Saturday Night Live all about his backup plan for solving global warming-to act completely nuts.

Video: Former vice president tells Weekend Update he's just going to start acting crazy from now on.

Green teens present Former Vice President Al Gore with an "inspiration award" for his work in motivating the next generation of environmentalists.

In an interview with the Daily Beast's Lloyd Grove, Gore unloads on the fear and doubt mongers trying to delay taking action on global warming.

Video: As climate talks continue in Copenhagen, former vice presidential candidate Sarah Palin finds herself in a war of words with Al Gore. NBC's Andrea Mitche

Video: Former vice president and environmental icon rallies the troops and turns up the pressure on Obama to pass climate change law.

Al Gore is pushing for a deal in Mexico this summer. But to get there we need a Senate bill by Earth Day.

An Alaska liquor store is making an icy statement about former Vice President Al Gore's stance on environmental issues. NBC's Chris LeClere reports.

Can over-consumption actually save the planet? Are we finally on the downslope of the bottled water craze? And should Al Gore be talking about meat?

Video: Bill O'Reilly doesn't take no for an answer. Al Gore learned this the hard way, as a Fox News producer ambushed the former vice president during a lunch

The EPA needs better pollution monitoring equipment, President Obama trashed hundreds of bikes, and someone designed a super box.

Bluewater Productions cranks out new bio-comic on the former Veep.

Former Vice President and wife parting ways after 40 years of marriage.

In light of separation from wife Tipper, jokes about the former Vice-President begin appearing. Some funny, most awful.

Proving that nothing is truly sacred, PETA sends a letter urging the former VP to drop the meat to pickup ladies.

Invited to speak at the Panetta Lecture, the former vice president reveals his fury at BP and talks of a 'cover-up'.

After Star Magazine's "exclusive" allegations, both camps denounce any infidelity.

Video: Police are reinvestigating allegations from a masseuse that she was sexually assaulted by former Vice President Al Gore. A legal scholar weighs in.

Clip features hilarious group of headband-wearing treehuggers in a VW bus.

Rapper urges environmental crusader to focus on a different type of green.

$75.5-million Carson-Gore Academy of Environmental Sciences to open amidst controversy of site's toxic past.

Danish environmentalist Bjorn Lomborg discusses his new book "Smart Solutions to Climate Change: Comparing Costs and Benefits'" as well as the film "Cool It," w

Often criticized by members of both parties, Sen. Joseph Lieberman has been a staunch supporter of the environment throughout his career.

The former vice president praised Romney for not being consumed by the 'anti science wing' of the Republican party.

The former vice president did not hold back in his 7,000-word essay in Rolling Stone about the climate change debate.

The former vice president has a new video project that he hopes can be a response to attacks from the fossil fuel industry.

This week, Al Gore announced a new venture — the Climate Reality Project — which he claims will push public interest past the tipping point toward serious a

The former V.P. says global warming doubters will one day be seen similarly to racists, and urges people who support emissions cuts to 'win the conversation.'

Al Gore talks about his work on the Climate Reality Project and marvels at the sophistication of Stephen's global warming metaphor.

Al Gore apparently let slip that Apple Computer plans to release new "iPhones" next month. Gore spilled the beans thusly: "Not to mention the new iPhones coming

Former vice president's new book addresses 6 areas of rapid global change, from global warming to the Internet to runaway population growth.

The former vice president has benefited from sustainable investments, Silicon Valley leadership and the sale of Current TV.

In an impromptu talk to a small crowd on the set of '24 Hours of Reality' with Al Gore.

Former vice president reportedly made the healthy shift several months ago.

Former vice president reveals in a new interview why he made the switch to a plant-based diet.

'Liturgusa algorei' one of 19 new species identified in the tropical forests of Central and South America.

His critics often accuse him of alarmism, but nowadays the former VP is sounding positively upbeat.

Debuting at Sundance, the follow-up to the 2007 documentary continues the former vice president's efforts to educate on the climate crisis.

The rise of the robots appears to be carefully timed, because it's political, not technological.

2016 will be the year that holodecks becomes real. Sort of.

Instead of keeping dozens of vehicles on site, Cadillac's smaller dealerships will offer virtual experiences for made-to-order sales.

As the technology decreases in price, some hospitals are trying it as a distractive force to cut the use of opioids.

Google's free PhotoScan takes five separate digital images of a print and combines them to create an image that's better than one taken with your phone.