The New Triple Constraints for Sustainable Projects, Programs, and Portfolios

9

Climate Change Constraint Overlay

Section 2 outline.

Climate is what we expect, weather is what we get.

—Mark Twain

Introduction

This chapter addresses Constraint 2—climate change. It addresses three primary areas, some history and background, climate manifestations, the issues and overlays, and a discussion of the overlays for planning for a different and warmer, more turbulent future, or, as the National Academy stated, a future that is inherently uncertain, "but far from unknown."

Scientists using constantly improving methodologies and technology are collecting temperature and other data and publishing it in technical journals and ...