This new chapter lays out how practicing engineers andarchitects can use their best professional judgment to mitigate the environmentalimpact of the buildings and systems they design and adapt them to a changingclimate. This content builds upon and complements existing ASHRAE guidance onminimizing the environmental impact of buildings and their systems. Forexample, ASHRAE publishes whole-building energy and water efficiency standardslike Standard 90.1, Energy Standard for Buildings Except Low-RiseResidential Buildings, as well as guidance on reducing the greenhouse gas (GHG)emissions of HVAC&R systems through improved efficiency and phasing outrefrigerants with high global warming potential (GWP) and ozone-depletingpotential. Other related work concerns the impacts of flooding and otherextreme weather events on the ability of buildings to preserve human life andmaintain acceptable indoor environmental quality (IEQ). A core theme of thischapter, therefore, is that while there are trade-offs between mitigation andadaptation, both are required.

Overview of Climate Science
Mitigating Climate Change
Adapting to Climate Change
Conclusion
Glossary

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