Byย Cassie Millerย &ย Stephen Carusoย |ย Pennsylvania Capital-Star
Extreme weather events such as flash floods, intense heat waves, and rising temperatures,ย all could become more frequent and severe in Pennsylvania by mid-century if current trends continue, according to a recent report.
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โNo one can expect Pennsylvaniansโ lives to stay as they are now,โ Pennsylvania Department of Environmental Protectionย Secretary Patrick McDonnell said.
The Pennsylvania Climate Impacts Assessment is a report the DEP produces every three years, as directed by the Pennsylvania Climate Change Act (Act 70) of 2008.
The report is sourced using federal, state and local data from Penn State University, ICF Consulting, and Hamel Environmental Consulting and funded by grants from the U.S. Department of Energy through the State Energy Program.
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Each update builds upon previous impact assessments, according to the department. This yearโs report โ the fifth iteration โ differs from years past because it โoffers a risk-based approach to assessing risks and prioritizing adaptation needs,โ the document reads.
McDonnell clarified that the projections included in the 2021 Pennsylvania Climate Impacts Assessment are based on โbusiness as usualโ behaviors, meaning no new preventative or mitigation measures are considered in the forecasts.
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The 143-page report debuted Wednesday with state officials weighing in on the findings, possible solutions, and mitigation measures.
Findings
The report noted six expected changes by mid-century when compared to a 1971-2000 baseline.
- The average annual temperature statewide will continue to rise, and is expected to increase by 5.9ยฐF (3.3ยฐC) compared to the baseline.
- There will be more frequent and intense extreme heat events. For example, temperatures are expected to reach at least 90ยฐF on 37 days per year on average across the state, up from the 5 days during the baseline period. Days reaching temperatures above 95ยฐF and 100ยฐF will become more frequent as well.ย
- Increasing temperatures will continue to alter the growing season and increase the number of days that people need to cool their homes and workspaces, but will also decrease the number of days that people will need to use heating.ย
- Pennsylvania could experience more total average rainfall, occurring in less frequent but heavier rain events. Extreme rainfall events are projected to increase in magnitude, frequency, and intensity. Drought conditions are also expected to occur more frequently due to more extreme, but less frequent precipitation patterns.ย
- Tidally influenced flooding is expected to increase in the Delaware Estuary coastal zone.ย
- Lake Erie is also expected to undergo significant changes in water level, coastal erosion, and water temperature. Notably, Lake Erie experienced record high water levels in 2019.
A Multi-dimensional Problem
Talking to reporters Wednesday, Department of Conservation and Natural Resources Secretary Cindy Adams Dunn called the report โsoberingโ and expressed concern for wildlife and plant species that could be affected by the effects of climate change in Pennsylvania.
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She noted that symbolic state species such as the Eastern Hellbender โmay not make itโ to mid-century due to their specific habitat needs, and the range of Eastern Hemlock trees โ Pennsylvaniaโs state tree โ could shift north as average temperatures rise.
These shifting plant hardiness zones, or geographic areas of a certain climate range that determine what plants will grow in a given region, could also affect pollinators such as bees, butterflies, bats and hummingbirds by โmismatchingโ their migration patterns and the plantsโ blooming season.
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With more than 149 dams across the commonwealth under DCNRโs jurisdiction, Dunn said increased precipitation and extreme storms are โa worryโ for the department. โIt is a big concern, Dunn told the Capital-Star. โYou donโt know where they [the storms] are going to park themselves.โ
Dunn said the department has awarded six contracts to repair deficient dams and has bids out for 20 more, but noted infrastructure funding is a continued concern for the departmentโs efforts to repair the dams.ย
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But the impacts arenโt limited to plants, wildlife and infrastructure, state Agriculture Secretary Russell Redding said.
โWhat we grow, when we plant, when we harvest, all of that will change,โ he said.
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Redding warned that addressing climate change is mission critical for Pennsylvaniaโs agriculture industry, which supports more than 593,000 Pennsylvania jobs and logs $132.5 billion in annual economic impact for the commonwealth.
Redding said farmersโ close connection with the environment makes them the โfrontlineโ in combating climate change.
โWe have a very intimate relationship with the climate,โ Redding told the Capital-Star. โWe need them there.โ
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The Pennsylvania Department of Agriculture has been working with farmers statewide to implement best practices that not only boost the environmentโs climate resilience, but protect water and soil quality, Redding said. โWe need to make sure we donโt think about this in one dimension.โ
Enter: RGGI
The report comes as the Wolf administration finalized its regulations for the Regional Greenhouse Gas Initiative, a coalition of 10 northeastern states that limit greenhouse gas emissions from power plants.
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RGGI (pronounced โReggieโ) auctions off carbon credits to power plant operators who must purchase enough to cover their projected emissions. Fifty-eight plants, powered by coal, gas, or a mix, will have to buy these credits.
By putting a price on carbon, proponents argue it incentivizes private companies to reduce emissions and invest in green energy. Revenues from the sale are funneled back to the states, which can use them for such programs as utility aid and aiding displaced workers.
However, opponents argue that Pennsylvania โ the second biggest energy-producing state in the country โ is ill-suited for this additional regulation.
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Business groups, the coal industry, organized labor, and lawmakers from fossil fuel-producing regions all have argued the plan is akin to a carbon tax, punishing one of Pennsylvaniaโs native industries and forcing jobs across state lines to less regulated jurisdictions.
Pennsylvania released 233 million tons of carbon in 2017, according to the stateโs most recent data. A little less than a third of that total came from fossil fuel burning power plants.
The DEP argues adopting RGGI will prevent 188 million tons of emissions, or about two and a half years worth of electricity emissions, over the next nine years.
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The policy likely wonโt be final for months as it winds its way through the stateโs lengthy regulatory review process. Without legislative action, a subsequent governor could revoke the policy at will.
With RGGI, sustainable farming efforts and infrastructure adaptations, DEP Secretary McDonnell said Pennsylvania can work to โpursue a different future.โ
โWe can reduce the impact that we are having on climate change,โ McDonnell said.
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