The State of Maryland released a new report earlier this year recommending a course of action to adapt to our changing climate. This report is the latest in a series that began in 2007 when Governor Martin O’Malley issued an executive order to establish the Maryland Commission on Climate Change. The commission was charged with addressing the causes of climate change and adapting to the most likely impacts. In 2008, the Maryland Climate Action Plan  was released, addressing impacts, mitigation, and economic concerns.
Among the impacts highlighted in the Climate Action Plan was sea level rise, projected to be more than a foot by mid-century and as much as 3 feet by 2100. If the highest rates are realized, most tidal wetlands would be lost and about 200 square miles of land would be inundated. The bay would also suffer additional stresses as restoration goals become more difficult to achieve. Aquatic species composition will change and increased nutrient runoff into the bay will make water quality goals much harder to meet. Impacts are projected to occur inland as well with heat waves greatly increasing the risk of illness and death. The average year will have 24 days above 100°F by the end of the century. Ground level ozone, formed under prolonged, high temperatures will increase, resulting in more respiratory illnesses, especially among vulnerable populations.
The Action Plan addressed the adaptation needs of coastal regions but only highlighted the need to pursue the development of adaptive strategies for other affected sectors. In response, work began on a report specifically for adaptation in these other sectors. Earlier this year, the culmination of this effort was released as the Comprehensive Strategy for Reducing Maryland’s Vulnerability to Climate Change, Phase II: Building societal, economic and ecological resilience . The report provides the basis for guiding and prioritizing state-level activities with respect to both the climate science and adaptation policy within short to medium-term timeframes.
Not every state has an adaptation plan , and Maryland is one of only two states (Virginia) in the Mid-Atlantic region to have completed one or made progress. However, both North Carolina and South Carolina have Climate Action Plans that call for an adaptation report and more states are moving towards producing adaptation plans. Maryland is at risk from a variety of ill-effects due to climate change and the identification and implementation of key adaptation measures will ensure the state minimizes the impacts and costs of climate change in the long run. Other states would do well to take heed, and move to minimize their costs as well.
Dan Huber is Science & Policy Fellow