The New York Times, September 13, 2017

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Animals around the world are on the move. So are their parasites.

Recently, scientists carried out the first large-scale study of what climate change may do to the world’s much-loathed parasites. The team came to a startling conclusion: as many as one in three parasite species may face extinction in the next century.

As global warming raises the planet’s temperature, the researchers found, many species will lose territory in which to survive. Some of their hosts will be lost, too.

Continue reading “Climate Change Threatens the World’s Parasites (That’s Not Good)”

It was a sold-out night on Wednesday at Caveat, the new New York science-themed venue that’s hosting my live series, “What is Life?” this fall.

I talked to a philosopher and an astrobiologist about how they define life, bringing out some props to figure out where they stand, life-wise: some lichen from my yard, a wind-up toy, a vial of viruses, and a rusty nail.

Sara Imari Walker of Arizona State University (in the photo) told the audience that I was talking about life as a thing, whereas she thought of it as a process. I took an applause-based survey, and discovered that they agreed. Continue reading “Friday’s Elk, September 8, 2017”

I was asked to give the keynote talk at “Science, Journalism, and Democracy: Grappling With A New Reality” at Rockefeller University on September 6, 2017 (video). This is what I said.

We’re here at this meeting to talk about science, journalism, and democracy. So let me begin by telling you about a newspaper article on a scientific experiment, an experiment that would end up having a major influence on government policy on a vital issue.

The vital issue was food. The experiment was carried out on wheat. Some varieties of wheat are known as spring wheat. They’re planted in the spring and grow soon afterwards. Winter wheat, on the other hand, is planted in the fall but does not produce its flowers till the spring. Winter wheat has the advantage of a much bigger yield. But there’s a catch. Continue reading “Let’s Not Lose Our Minds”

The New York Times, August 31, 2017

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Climate change will dramatically alter life in the oceans, scientists say, but there’s so much still to learn about marine ecosystems that it’s hard to know exactly how.

On Thursday, researchers with the British Antarctic Survey offered a glimpse of that future with the results of an unusual study years in the making.

The scientists heated a patch of the sea floor off the coast of Antarctica and tracked the effects on a few local species. Some animals responded by doubling their growth, stunning the researchers.

Continue reading “Hot Spots in a Freezing Ocean Offer Lessons in Climate Change”

Last week I let you know about my upcoming series of talks about life. Here’s an update with the details of the full schedule. All four events will take place at Caveat in Manhattan:

9/6 I’ll kick off the series with the fundamental question, “What is life?” First I’ll talk to a philosopher, Carlos Mariscal, about why this question is so hard to answer–perhaps because the question itself doesn’t make sense. Then I’ll speak with Sara Imari Walker, a physicist and astrobiologist, about how she answers the question as part of the search for extraterrestrial life.

11/1 How did life start? Geochemist H James Cleaves II and I will talk about the century-long struggle to answer that question. I’ll then talk with astrobiologist Caleb Scharf about where that struggle has left us today, and where it’s headed. Continue reading “Friday’s Elk, August 25, 2017”