Now playing Next USA Tree-planting campaigns are gaining momentum. But do they make a difference? "Reforestation needs to be part of the solution if we're going to succeed, but we need to understand that trees everywhere isn't always a good thing," one researcher said. 11/11/2019
Now playing Next world news Bolivian President Evo Morales resigns after disputed election The president of Bolivia, Evo Morales, confirmed that he resigns from the presidency after almost 14 years in power. 10/11/2019
Now playing Next USA Mercury is making a rare 'transit' across the sun. Here's how to watch. Skywatchers around the world have the opportunity to witness a rare astronomical event Monday that occurs just 13 times each century. 10/11/2019
Now playing Next USA Uber self-driving car in fatal crash did not recognize that pedestrians jaywalk The automated car lacked "the capability to classify an object as a pedestrian unless that object was near a crosswalk," an NTSB report said. 09/11/2019
Now playing Next world news Ex-Twitter employee accused of spying for Saudi Arabia granted bond Ex-Twitter employee accused of spying for Saudi Arabia granted bond 09/11/2019
Now playing Next USA Smartphone voting app needs security review, senator says In a letter sent to Defense Secretary Mark Esper, Sen. Ron Wyden requested a review of the Voatz voting app, which has been used in elections in Colorado, Oregon and Utah. 09/11/2019
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Now playing Next USA On Instagram, some teens reveal personal data without realizing Minors on Instagram are switching to business accounts so they can see how many people view their posts, but they are exposing their contact details in the process. 08/11/2019
Now playing Next USA A deadly virus is spreading in marine mammals. Scientists say climate change is to blame. The study adds to growing research that global warming is having some unexpected impacts on animal and human health. 07/11/2019
Now playing Next Portugal Tech addiction: ‘Smartphone or cocaine, your brain gets the same hit’ A dating app CEO and former addict says he can control himself better around drugs and alcohol than his smartphone. 07/11/2019
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Now playing Next USA Welcome to 'Adversaria': How a fake town and real hackers battle test officials for Election Day 2020 In the fictional American town of "Adversaria," federal and local law enforcement officials battled against hackers who used a deep bag of tricks to disrupt election day. 06/11/2019
Now playing Next USA California discloses Facebook probe, demands Zuckerberg's emails "We have to uncover facts," said California's attorney general. 06/11/2019
Now playing Next Germany Meet the flying taxi that could revolutionise how we move around Meet the flying taxi that could revolutionise how we move around. 06/11/2019
Now playing Next Portugal 'Godfather of crypto' hails new chat app with privacy protection David Chaum is championing xx alpha messenger, a unique chatting app that prevents observers making the connection between sender and receiver. 06/11/2019
Now playing Next USA Leaked documents show Facebook leveraged user data to fight rivals and help friends NBC News is releasing almost 7,000 pages of leaked documents showing how Facebook treated user data as a bargaining chip with external app developers. 06/11/2019
Now playing Next Business Germany could ban Huawei from 5G build-out, says defence minister Germany's defence minister Annegret Kramp-Karrenbauer said on Tuesday that it still hadn't ruled out whether to block Huawei from the country's 5G build-out. 06/11/2019
Now playing Next USA TikTok and China come under scrutiny in congressional hearing "If you don't know what TikTok is, you should," Sen. Josh Hawley, R-Mo., said. 05/11/2019
Now playing Next USA More than 11,000 scientists issue fresh warning: Earth faces a climate emergency A new study identifies six key areas for critical changes, including addressing the planet's swelling population. 05/11/2019
Now playing Next Portugal 'We're learning' says Lime CEO on electric scooter criticism “We’re learning, cities are learning,” Lime chief’s executive told Euronews as he addressed critics who claim electric scooters are endangering pedestrians and littering pavements across Europe. 05/11/2019