Agriculture's

Now in his late 60s, one of American agriculture's notable contrarians is more rumpled and thicker in the waist than he was as a Kansas farmboy, coasting through what he calls one of the most misspent youths in the history of the planet.

Source: tatoeba (10802176)

It's the oldest tree seedling nursery run by the U.S. Department of Agriculture's Forest Service.

Source: tatoeba (12093697)

At the U.S. Department of Agriculture's research center near Washington, D.C., plant physiologist Lewis Ziska said weeds — defined as any unwanted plant — appear to be thriving in today's atmosphere, which is richer in carbon dioxide, or CO₂. And Ziska said agricultural research studies show that if climate trends continue, allergy sufferers will have to endure longer and more intense pollen seasons in the decades ahead.

Source: tatoeba (12247983)