“No one has been talking about Iran for a very long time,” said Anne-Sophie Corbeau of the Center on Global Energy Policy. “There are three ways Iranian gas could possibly help Europe.”

"Much less Russian oil is getting out into the world. And therefore, there's less oil in the global bathtub of oil and that pushes prices up for that global oil price," comments Jason Bordoff of the Center on Global Energy Policy.

"With Putin’s unrelenting pressure on Russia’s own news outlets, the American company — with more than 200 contributors across Russia — became perhaps the biggest independent source for Russians about events in their own country," Thomas Kent writes.

“The lesson of the World Happiness Report over the years is that social support, generosity to one another, and honesty in government are crucial for well-being,” Jeffrey Sachs says.

"It turns out China and Russia have their own versions of SWIFT," Shang-Jin Wei says.

"The U.S. has an opportunity to craft a firm China policy that could curb a close relationship between two authoritarian regimes that would be very dangerous," Lincoln Mitchell writes.

“The United States and the EU are very energetic in the imposition of sanctions, trade barriers, technology barriers, and financial barriers towards Russia ... I do not agree with this,” Jeffrey Sachs told Xinhua News.

Dr. Kaushik Deb, senior research scholar with the Center on Global Energy Policy (CGEP), and Abhiram Rajendran, adjunct research scholar with CGEP, answer questions about the challenges OPEC+ now faces with this crisis.

Stephen Biddle said that although there is risk in providing Ukraine with weapons, it entails less risk than allowing NATO territory to be used for flying MiG fighters into Ukraine or for enforcing a no-fly zone.