One-third of the House of Representatives sent a letter to the Environmental Protection Agency on Wednesday expressing their concern stemming from an anti-farmer billboard that was installed using taxpayer funds. The letter was signed by 145 representatives and addresses a billboard in Washington state that was linked to the whatsupstream.com campaign. The campaign’s website encouraged Washington residents to contact their legislators to tell them to “hold the agricultural industry to the same level of responsibility as other industries.” Read more at Agri-Pulse…