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Heartland Biogas in LaSalle, Colorado, is using a method called anaerobic digestion to capture the methane from the food we waste and turn it into a renewable energy source.

Democratic vice presidential candidate Tim Kaine discusses his debate performance with CNN's Alisyn Camerota.

At a campaign rally in Reno, Donald Trump pronounces "Nevada" incorrectly while explaining to the crowd how to pronounce it.

Life as a caddy isn't easy. Brittany Henderson walks about 42 miles every week of competition as the caddy for her sister, 2016 LPGA winner Brooke.

Hurricane Matthew continues to gain strength as it approaches Florida, with sustained winds at 125 miles per hour.

The Coast Guard in Yeosu, South Korea, struggles with winds and giant waves as Typhoon Chaba makes landfall.

CNN's Ivan Watson meets refugees in Hong Kong who helped hide NSA whistleblower Edward Snowden from authorities when he was on the run from the US.

Our political panel responds to pundits who said Mike Pence did not back up his boss at the vice presidential debate.

A new CNN/ORC poll shows that 54 percent of Americans believe relations between blacks and whites in the US have worsened under President Obama. CNN's Pamela Brown reports.

Known for its colonial architecture, Kolkata is expressing its identity through eco parks, increased connectivity and contemporary design.

Bill Clinton had to do damage control today after making several controversial remarks. CNN's Randi Kaye looks at the former president's role in Hillary Clinton's campaign.

Former Independent Presidential candidate Ralph Nader speaks to Anderson Cooper about the impact of third party candidates on the 2016 election.

In an interview with CNN's Anderson Cooper, Ralph Nader said Donald Trump and Hillary Clinton "both flunk" and that third party candidates shouldn't be considered "spoilers."

Can't take your eyes off Tim Kaine's eyebrows? CNN's Jeanne Moos reports on the ups and downs of his brows.

From ground floor to the 95th in 43 seconds, the elevator inside the CTF Tower in Guangzhou heralds a new era in lift technology that will enable architects to build to new heights.

A suspect is in custody after a gunfight during a burglary call left a Los Angeles County sheriff's sergeant dead, authorities said.

Libertarian VP candidate Bill Weld speaks to Anderson Cooper about calls for him to drop out of the race.

When quadruple amputee and retired Marine Sgt. John Peck looks down at his new arms, he said, he's overcome with gratitude -- and vows that he will not take them for granted.

At a campaign fundraiser in Washington on Wednesday, Hillary Clinton says Mike Pence cannot defend his running mate Donald Trump.

At a rally in Philadelphia, Sen. Tim Kaine talks about his performance at the vice presidential debate, saying the dialogue with his opponent, Gov. Mike Pence, was "a little feisty."