Climate scientists have warned of calamitous consequences if global temperatures continue their rise. But macroeconomists have largely told a less alarming story, predicting modest reductions in productivity and spending as the world warms. Climate scientists have warned of calamitous consequences if global temperatures continue their rise. But macroeconomists have largely told a less alarming story, predicting modest reductions in productivity and spending as the world warms. Earth Sciences Environment Phys.org – latest science and technology news stories