#CNNVideo

Billionaire investor Ray Dalio joins CNN's Jake Tapper to discuss making clean energy profitable long-term and the likelihood of spending on adaptation rather than mitigation of climate change.

Former Vice President Al Gore joins CNN's Jake Tapper to discuss renewable energy and a rise in bipartisan support for climate action.

Climate scientist Katharine Hayhoe joins CNN's Jake Tapper to discuss expected climate extremes in 2024 and reasons why young people can remain hopeful.

CNN's Chief Climate Correspondent Bill Weir on the indelible images we saw of the changing climate this year, and also the causes for hope.

Home to 10% of the world's greater flamingos in summer, and a haven for giant Dalmatian pelicans, the Gediz Delta is Turkey's largest wetland and a protected area for many rare birds. CNN takes a tour of this biodiversity hotspot with the passionate people spreading awareness about it.

In addition to fighting superbug infections, researchers in Thailand are studying how phages could be used in our food supply to cut back on the use of antibiotics.

CNN's Kevin Liptak looks at mounting pressure on the Biden administration over immigration policies, as the number of migrants crossing the U.S. southern borders reaches all-time high

New Zealand's coastal communities bear the brunt of extreme weather events. In Auckland, young engineers and architects are using technology to help their city withstand the impact of our changing climate.

CNN's Brian Todd explains the use of presidential immunity in the US and why former President Donald Trump is trying to use it in court.

Amid charges that a three-way with his wife instead turned into a rape, Florida GOP Chair Christian Ziegler sees his authority removed by his party.

Donald Trump's arguments that he has presidential immunity for actions taken while in office hearken back to Richard Nixon's claims.

Paul Whelan, an American jailed in Russia, gives a new account of being targeted by a Russian prison official.

Brian Todd reports on a recent uptick in threats to synagogues in the US, including one this week in Washington DC.

CNN's Jeff Zeleny looks at former President Donald Trump's new ground game in Iowa ahead of the caucuses.

CNN's Rafael Romo explains why the surge in migrants crossing the U.S.-Mexico border is leading immigration activists and border patrol officers alike to call for more help from the federal government.

Late Saturday, former President Trump asked a federal appeals court to throw out his criminal election subversion case, saying he is protected under presidential immunity.

In Berlin, thousands of people gather to sing Christmas classics and football songs.

Olena Chekryzhova, a Ukrainian English teacher, explains why the country changed the day they celebrate Christmas and how Ukrainians are staying resilient in their struggle against Russian aggression.

CNN's Michael Holmes speaks with Jill Dougherty about how stalled aid for Ukraine helps Russian morale and could embolden other malicious states with intent to harm the U.S.

CNN's Nada Bashir takes a look at the situation on the ground in Gaza as aid groups warn of a growing hunger crisis, and the Israel Defense Forces say they're expanding operations in the enclave.