ClimateWire: Holding back catastrophic climate change is still possible -- but just barely, and doing so will require a tremendous technological effort, according to a sweeping new report that analyzes what it would take to de-carbonize the world's top economies.
Led by Columbia University's Earth Institute Director Jeffrey Sachs, the study builds on research showing the world is badly off-track to meet its international pledge of limiting the mean global temperature rise to below 2 degrees Celsius by 2050....