The shipping industry wants net-zero carbon emissions by 2050. How can that happen?

<p>A major international shipping industry group presented that zero-emission target this week. One of the actions needed to reach that goal could be switching to an alternative fuel, but how realistic is all this? Also today: We look into the potential ripple effects of the spike in oil prices. We also talk to Molly Wood about the launch of our new podcast, &#8220;How We Survive.&#8221;</p>