Tags > Stephen Petranek

Stories for "Stephen Petranek"

Global Issues

And the countdown to Armageddon continues…And the countdown to Armageddon continues…

Posted By TED Guest Author

By Stephen Petranek So, the world hasn’t come to an end yet. But the insecurities and fears about the so-called Mayan Calendar prediction that Earth as we know it will cease to exist today has created such a ruckus that Michigan officials closed 33 schools in preparation and NASA has devoted many web pages to […]

 

Canada's opinion on the 10 ways the world could end

Posted By Tedstaff

This week, the great CBC radio show Quirks & Quarks convened nine Canadian scientists and one science fiction writer to speculate on 10 ways the world could end. You be the judge: Is their list scarier than Stephen Petranek’s (watch his TEDTalk)?

Environment

Notes from the TED Salon: "Hot Science: Radical Ideas to Combat the Climate Crisis"

Posted By June Cohen

Last night in New York City, 250 TEDsters gathered to hear some radical proposals for outsmarting climate change. It’s a fact: Atmospheric carbon dioxide levels are rising, and with them the possibility of severe climate change within our lifetimes. Increasingly, scientists are considering extreme measures that can quickly suck CO2 out of the atmosphere to […]

Science

Quotes from the TED Salon

Posted By Tedstaff

Last night in Manhattan, TED hosted its 2007 Salon, called “Hot Science: Radical Ideas to Combat the Climate Crisis.” A detailed roundup is coming later today — but first, a few quotes from last night: The first speaker, Michael Oppenheimer, began by saying: “I’m the depressing, immobilizing part of the talk.” He went on to […]

Transcript

10 ways the world could end: Stephen Petranek on TED.com

Posted By Tedstaff

Stephen Petranek reveals the question that occupies scientists at the end of the day (and the beginning of happy hour): How might the world end? He lays out the challenges that face us in the drive to preserve the human race. Will we be wiped out by an asteroid? Eco-collapse? How about a particle accelerator […]