|Boom in urchin harvest flips Maine's ecosystem|
Portland Press Herald - 3/25/2013. By Clarke Canfield - A boom that led Maine fishermen to harvest millions of pounds of sea urchins for the lucrative Japanese market depleted the species, turning the ecosystem upside-down and creating ideal habitat for an urchin predator that has flourished, a new scientific study says.
|Search is on for tetracycline replacements in organic orchards|
Capital Press - 3/25/2013. By Steve Brown: Portland, Ore. - Though researchers have tested several treatments that may be able to replace oxytetracycline in organic apple and pear orchards, they say they need more time to find the most effective way to fight fire blight.
|Pictures: Green Walls May Cut Pollution in Cities|
National Geographic - 3/25/2013. By Bertrand Garbel - These vegetated surfaces don't just look pretty. They have other benefits as well, including cooling city blocks, reducing loud noises, and improving a building's energy efficiency.