People eating the western diet of heavily processed food, of lots of meat and added sugar and added fat, and very little whole grains and fruits and vegetables.Populations who eat that way have seriously high incidences of chronic diseases.

To ferment your own food is to lodge a small but eloquent protest - on behalf of the senses and the microbes - against the homogenization of flavors and food experiences now rolling like a great, undifferentiated lawn across the globe.

The things journalists should pay attention to are the issues the political leadership agrees on, rather than to their supposed antagonisms.

It's very important to get out, to do reporting. It's also really interesting. I come at it as a journalist, and I think that's helped me, and I come at it as someone who sees nature wherever he looks, and that helps.

I get letters from classes all the time. Say it's assigned in someone's 8th grade class, and the teacher asks everyone to write a letter to me about their impressions and what they learned. So, it's incredibly gratifying to hear.

We could have a greener economy, even a greener consumer economy by changing the rules - whether it's by taxing carbon or trading carbon, I'm not sure what - but in the end there's just a fundamental problem with the sheer amount we're consuming.

Human health should now be thought of as a collective property of the human-associate d microbiota, as one group of researchers recently concluded in a landmark review article on microbial ecology - that is, as a function of the community, not the individual.