Greetings and welcome to another episode of 10 Words or Less, in which I ask brief questions, and request brief answers, of interesting people. Today’s guest is a senior analyst for the Environmental Working Group who focuses on food and agriculture policy. Remember, the 10-words thing is a goal, not a rule, so please, no counting.

Name Kari Hamerschlag
Born when, where Washington D.C., Nov. 28, 1963
Anything unusual about the circumstances? “My mom’s doctor had just been attending to Jackie Kennedy.” [For you young kids out there, Kari was born 5 days after John F. Kennedy’s assassination.]
Residence now “Oakland, Calif.”
A formative event early on “Living in Switzerland from ages 11 to 15, among many different cultures and languages.”
Someone outside your family who influenced you “Gary Hart. I worked for him when I was  a junior in high school, and later worked as a volunteer on his presidential campaign. He got me started in politics.”
Something that helps you be effective in your job “The understanding that it takes persistence and a long time to make the kind of change we’re working for.”
A habit you’re trying to change “Negative thinking.”

In the latest round of “10 Words or Less,” the participant is one of the panelists May 26 for “Food and Sustainability,” a continuation of the two-year “Let’s Talk About Food” series being conducted by Boston’s Museum of Science. Carroll is the author of several books, including “Pastures of Plenty” and “The Real Dirt.” Remember: Please, no counting; the 10-word thing is a goal, not a rule, and besides, let’s see you do it.
Name: John E. Carroll
Age: 65
Residence: Durham, N.H.
Occupation: Professor of environmental conservation, University of New Hampshire
Passion: “Watching the growth of the new local food and farming movement.”

After a brief hiatus, another in a series of miniprofiles of sustainability-minded people who are working to reduce humankind’s footprint on the planet. They're "mini" not only because they're short, but because all the questions are 10 words or less, and the answers are requested to match. I met today's subject while writing about a green, urban in-fill property in Lawrence, Mass., and later hired him to help us plan an expansion at our house. 

JOHN ROSSI, 42, of Newburyport, Mass. 
Principal, Barendsen Rossi Collaborative, which does architecture, design, and industrial design

Why do you do this work? "Because I love solving problems."

Green epiphany: "In college, we read Rachel Carson's "Silent Spring," and I realized at one point, 'oh my, this was written 30-40 years ago, and how much worse could it be now?' I’ve realized since that it isn’t all doom and gloomy, that there really is an opportunity here."

A sustainability practice you’ve taken on: "Raising kids who appreciate the earth and want to take care of it."

This is another installment in my series of miniprofiles of sustainability-minded people. The Green Building Initiative is a nonprofit working to hasten the adoption of sustainable-building practices, and administers the Green Globes, a tool for assessing and rating green-building practices, comparable to the more well-known LEED program. To recap, the profiles are "mini" not only because they're short, but because all the questions are 10 words or less, and the answers are requested to match.

This is another installment in my series of miniprofiles of sustainability-minded people. Joe Lstiburek (pronounced "stee-brick") is a nationally recognized authority on building science in general, and especially on moisture-related building problems and indoor air quality. To recap, the profiles are "mini" not only because they're short, but because all the questions are 10 words or less, and the answers are requested to match.

JOSEPH LSTIBUREK, 53, Westford
Principal, Building Science Corp., Westford and other locations

Green epiphany: “I don’t think I ever had one.”

Green hero: “I don’t have one; I think green is mostly overdone. But I do have an architectural hero, Edward Mazria.

A sustainability practice you’ve taken on: “”I’ve done my house. We took an 1880s house and made it ultra-energy-efficient.”

Another in a series of miniprofiles of sustainability-minded people who are working to reduce humankind’s footprint on the planet. They're "mini" not only because they're short, but because all the questions are 10 words or less, and the answers are requested to match.

JOEL GORDES, 62, West Hartford, Conn. Energy consultant, Environmental Energy Solutions

What do you do? “I work on all sorts of energy-related issues, including energy efficiency, renewable energy, climate change and the insurance industry, and energy security.”

Green epiphany: “Flying missions over Vietnam. I was an Air Force officer flying unarmed reconnaissance, and the land looked like the craters of the moon in places. Then in 1972, after I came home, I happened to read an article in Scientific American about the cratering of Southeast Asia. That was my moment.”

Green hero:Dr. Albert E. Burke. He was a Yale professor who was the first to use television as an educational medium working at the connection of the environment, our resources, and our freedoms. He came publicly before Rachel Carson, before Barry Commoner, before Buckminster Fuller.”

Somewhat akin to love of one's children, I like everything I publish, but some posts are more equal than others, and this installment in my series of miniprofiles of sustainability-minded people is just terrific, I think. (Please note: I attribute this to the subject, not to me; this ain't braggin'.) To recap, the profiles are "mini" not only because they're short, but because all the questions are 10 words or less, and the answers are requested to match.

PAUL ELDRENKAMP, 51, Newton Owner, Byggmeister Inc., a residential remodeling contractor

Green epiphany: “About 6 years ago, when I realized that no one was keeping score in terms of household energy consumption.”

Green hero: “Linda Wigington of Affordable Comfort (ACI). She initiated the North American Thousand Home Challenge (pdf available here), reaching out to people across the country to do deep energy retrofits and then to share the information we learn.”

Another in a series of miniprofiles of sustainability-minded people who are working to reduce humankind’s footprint on the planet. They're "mini" not only because they're short, but because all the questions are 10 words or less, and the answers are requested to match.

PRESTON KOERNER, 29, Salt Lake City Lawyer, LEED AP, and founder of Jetson Green, an exceptionally informed website on green building initiatives.

What do you do: “I’m obsessed with green building and with helping other people become obsessed with green building.”

Did you know Jetson Green was going to be such a hit? “Not at all.”

Green epiphany: “Boy Scouts is when it started: 'Leave it better than you found it.’”

Another in a series of miniprofiles of sustainability-minded people who are working to reduce humankind’s footprint on the planet. They're "mini" not only because they're short, but because all the questions are 10 words or less, and the answers are requested to match. (Please, no counting.)

JANINE BENYUS, 50, Stevensville, Mont. Cofounder, Biomimicry Guild; Author, "Biomimicry, Innovation Inspired By Nature"

What do you do? "I’m a biologist at the design table, helping innovators consult life's genius to create sustainable designs."

Green epiphany: "Asking the question, 'is anyone consiously trying to emulate the elegant, well-adapted, fit technologies of nature?' It was about 1990."

Another in a series of miniprofiles of sustainability-minded people who are working to reduce humankind’s footprint on the planet. They're "mini" not only because they're short, but because all the questions are 10 words or less, and the answers are requested to match. (Please, no counting.)

ADDIE CRANSTOUN, 29, Manager, Green Depot, Waltham

Green Depot sells building materials focused on environmentally friendly products. Stoneham is one of five locations for the company, which is headquartered in Brooklyn, N.Y.

Green epiphany: "In elementary school, one of the first major issues I tackled was concern about our ozone layer."

Green hero: "Jane Goodall. Not only for the work she’s done, but recently, she’s doing more speaking and trying to educate children that they can have sustainability at the forefront of their future."