Washington Post: As world leaders converge in Pittsburgh for a major economic summit this week, one of the biggest questions they face is this: How do you begin to replace the millions of jobs destroyed by the Great Recession, now that the worst of the crisis has potentially passed? Here on the sun-drenched and windy Iberian Peninsula, Spain thinks it has an answer: create new jobs and save the Earth at the same time. Green jobs have become a mantra for many governments, including that of the …