Science & Technology

In this article, the authors review the state of the art of ocean energy in desalination. It explores different sources of energy from the ocean that include electricity generation, as well as mechanical force and thermal energy and salinity gradients that can also be directly harnessed for powering the desalination processes. They also examine recent advances in scaling up for commercial deployment and discuss relevant cost, environmental, and social concerns.

After their bilateral summit at the G-20 meeting in Germany earlier this month, President Trump and Russian President Vladimir Putin had another encounter — one that was previously undisclosed and reportedly went on for an hour. The two leaders were joined only by Putin's own interpreter, which Ian Bremmer, president of political risk consultancy Eurasia Group, called a "breach of national security protocol."

Here & Now's Lisa Mullins talks with Professor Nicholas Burns (@rnicholasburns) about the meeting.

Nicholas Burns talks to CNN's New Day about Trump's undisclosed second meeting with Vladimir Putin at the G-20 meeting. "You have to show Putin where he can't go. And President Trump has not done that."

At the end of this week, President Donald Trump and Russian President Vladimir Putin will meet formally at the G20 Summit in Hamburg. The meeting comes at a time when there is growing consensus in Washington that the severity of Russian influence on the 2016 election should be dealt with more seriously by the current administration. At a hearing last week before the Senate Intelligence Committee, a panel of experts said they believed that not only Russian actors, but President Putin himself was behind the effort to undermine the election and urged the U.S. to work closer with its allies in Europe to stop future threats. Putin has denied any interference in the 2016 U.S. election. Nicholas Burns, a former ambassador to NATO and former Under Secretary of State for Political Affairs for former President George W. Bush, and currently a professor at the Harvard Kennedy School of Government, testified at the recent hearing and shares his concerns.

On June 28, Nicholas Burns testified before the Senate Select Intelligence Committee on Russian interference in European elections. He called President Trump's response to Russia's cyber attacks on the U.S. democratic system both "dismaying and objectionable." He says it's the "president's duty to be skeptical of Russia and that his refusal to take action is "a dereliction of his basic duty to defend the country."

Former US Ambassador to NATO and Bush administration State Department official Nicholas Burns accused President Donald Trump of a "dereliction of the basic duty to defend the country" for his apparent disinterest in Russia's meddling in the 2016 US election.

Nick Burns talks with CNN Today regarding Russian interference in elections in Europe and the U.S., and the lack of response from the Trump Administration to contain this threat.