Local Handbook Update
5
Natural and climate disaster risk information that is accurate, comprehensive, and produced or
endorsed by an authoritative source can help decision makers better assess their community’s risk.
Across the United States, communities are working to build resilience to hazards such as extreme
heat, drought, flooding and wildfires. Adaptation to climate change also creates resilience.
The mitigation plan provides a ready-made opportunity for communities to account for climate
change and climate risks in their planning. The plan’s risk assessment must include the probability
of future hazard events. At its most basic, probability is the likelihood of a hazard happening. The
probability description must discuss any hazard characteristics that may change, such as location,
extent, duration and/or frequency. The mitigation strategy is a chance to identify, evaluate and carry
out actions that will reduce future climate change-related risks. The mitigation plan also can and
should be integrated with other community climate resilience activities, like a climate adaptation
plan or a greenhouse gas reduction strategy.
Climate Change Terminology
Climate is the usual weather of a place. Climate can be different for different seasons. A place
might be mostly warm and dry in the summer but be cool and wet in the winter.
Climate Change refers to “changes in average weather conditions that persist over multiple
decades or longer. Climate change encompasses both increases and decreases in
temperature, as well as shifts in precipitation, changing risk of certain types of severe weather
events, and changes to other features of the climate system.”
Climate Adaptation refers to adapting to life in a changing climate. It involves adjusting to
actual or expected future climate. The goal is to reduce risks from the harmful effects of
climate change (like sea-level rise, more intense extreme weather events, or food insecurity). It
also includes making the most of any potential beneficial opportunities associated with climate
change (for example, longer growing seasons or increased crop yields in some regions).
Climate Mitigation involves reducing the flow of heat-trapping greenhouse gases into the
atmosphere, either by reducing the sources of these gases (for example, the burning of fossil
fuels for electricity, heat or transport) or enhancing the “sinks” that accumulate and store
these gases (such as the oceans, forests and soil). The goal of climate mitigation is to avoid
significant human interference with Earth's climate. Note: when climate experts use the term
“mitigation,” they are referring to reducing greenhouse gas emissions. In a hazards context,
“mitigation” refers to reducing disaster losses.
Climate Resilience is the ability to anticipate, prepare for, and respond to hazardous events,
trends or disturbances related to climate. Improving climate resilience involves assessing how
climate change will create new, or alter current, climate-related risks, and taking steps to
better cope with these risks.