The majority of the world's seed for broccoli, cauliflower, and similar veggies is produced in Oregon's Willamette Valley. But the seeds can be easily contaminated by pollen from canola, which the state recently allowed in the valley. The legislature must ban the canola.
These green cowboys try to marry good stewardship of the land with making money.
For years researchers have watched plants and animals migrate to cooler quarters in response to global warming. But a new study suggests some plants are moving downhill, drawn by increased precipitation.