According to a study in the journal Environmental Research Letters, the adverse impact from heat and drought over the past 50 years in Europe have tripled crop losses from 2.2 percent to 7.3 percent. The impacts have been higher for row crops such as grains used to feed livestock. This is likely because the higher market value of specialty crops better covers the cost of water management on those acres. Yet the investment in increased irrigation in Europe has been relatively stagnant. Spain, which has historically experienced more drought than northern Europe, has invested more than other countries. The data may not be fully accurate but boosting funding for irrigation would mean intensification of production and thus perceived harmful to...