According to broad international agreement, a global warming increase beyond 2°C is unacceptable (1). Because of the physics of the climate system, we must ensure that global emissions of greenhouse gases peak and start to decline rapidly within a decade in order to have a reasonable chance of meeting the 2°C goal (2). Humankind has waffled and delayed for decades; further delay risks serious consequences for people and the ecosystems on which we rely.
Because the potential consequences of climate change are so high, the science community has an obligation to help people, organizations, and governments make informed decisions. Yet existing institutions are not well suited to this task. Therefore, we call for the science community to develop, implement, and sustain an independent initiative with a singular mandate: to actively and effectively share information about climate change risks and potential solutions with the public, particularly decision-makers in the public, private, and nonprofit sectors.
So begins an important letter in Science (subs. req’d) by Thomas E. Bowman, Edward Maibach, Michael E. Mann, Richard C. J. Somerville, Barry J. Seltser, Baruch Fischhoff, Stephen M. Gardiner, Robert J. Gould, Anthony Leiserowitz and Gary Yohe.
Here’s the rest: