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Construction along the coast now needs to be ready for nearly 2 feet of sea level rise by 2050.
That’s because sea levels are rising faster in the Northeast than anywhere else in the country.
The winters and waters are also warming the most compared to the rest of the U.S., according to the recently released National Climate Assessment, which was prepared by a team of more than 300 federal and non-federal experts and reviewed by 13 federal agencies.
“When you put it all together, it’s depressing,” said Rob Klee, commissioner of the state Department of Energy and Environmental Protection.
The symptoms of climate change are already being seen in Connecticut with flooding along the coast, downed trees during more severe storms and warming waters pushing fish further north.
“It’s brutal,” said Mitch Wagener, a biology professor who teaches several classes on climate change at Western Connecticut State University in Danbury.
“This is not something to bury on Black Friday. This is something that should be a road map and wake up call on what we need to do.”
Rob Klee, commissioner of the state Department of Energy and Environmental Protection
Infrastructure threat
The destruction left in Superstorm Sandy’s wake is a popular example in the report, especially because storms are expected to become stronger based on the Gulf Stream slowing and stalling stormfronts in one area longer.
“It was an unusual storm and it’s in everyone’s mind,” Wagener said. “Who doesn’t have a Sandy story who lives in this area?”
These storms can take down power lines, and the surges of water can flood substations along the coast causing power outages — one of the biggest threats because they can cause food to spoil and air conditioning can’t offer relief on really hot days.
Connecticut’s infrastructure is also at risk to flooding because much of it is located along the water, and is older.
Klee said construction plans near the coast now have to accommodate for 20 inches of sea level rise by 2050.
“It’s about preparing for likely what will happen,” Klee said.
Agriculture
There’s a chance Connecticut won’t be able to produce maple syrup for much longer as the winters get hotter and there’s less of a change in temperature between the seasons.
“I would not invest in the sugar maple industry in Connecticut because it’s going further north,” Wagener said.
Climate change could help some of the Northeast’s agriculture though over the next 50 years because there will be a longer growing season. But the longer season also comes with more rain, which could negate the extra growing days. Too much moisture is already a leading cause of crop loss in the Northeast, according to the report.
Elements of this were seen this past summer when the abundance of rain made it more challenging to harvest the grape crop.
The rain also tends to come in deluges with long stretches of dry periods.
Fish and lakes
It’s already a challenge to find lobsters in the Long Island Sound, with warming waters making the lobsters more vulnerable. Other fish and sea creatures are moving further north as they seek cooler waters closer to the temperature they need to survive.
This has created a challenge for commercial fisheries where each state has different quotas for what can be caught. These quotas are based on what was historically there and though the mid-Atlantic fish are now in New England, it’s still those mid-Atlantic states that have the bulk of the quotas, Klee said.
Recreational anglers also face restrictions on trout and other cold water fish that need to be protected when the inland waters get too hot.
There will also be less lake ice in Connecticut, which means the top layers will warm faster, affecting how the lake mixes — a large factor in how the toxic blue-green algae blooms form.
Earlier mixing and more hot, humid days in the summer could result in more blue-green algae blooms, which are harmful to pets and humans and close down beaches, said Larry Marsicano, Candlewood Lake Authority’s former executive director and now principal partner at Aquatic Ecosystem Research.
“We’re already seeing the effects of climate change on Candlewood,” he said.
Harmful insects
The warmer winters have also allowed for insects that can harm people and trees to make their way up north or stay active longer, including ticks.
“It can mean that people are more likely to encounter an adult stage blacklegged tick that will be looking for a blood meal,” said Neeta Connally, a Western Connecticut State University biology professor who oversees the university’s Tickborne Disease Prevention Lab. “When the winter days are very cold, or when there is snow covering the ground, the adult ticks are not active, and so we don't tend to worry about them as much.”
The increase in the spring and summer rains, also creates ideal habitats for mosquitoes, which can transmit diseases to people.
Warmer weather also provides ideal climates for invasive insects that threaten trees throughout the state, including the southern pine beetle and the emerald ash borer.
It’s not all bad news for the trees though. The foliage is expected to become more colorful.
Health effects
New England has warmed 3 degrees Farenheit since 1901, posing a severe health risk, especially to those in urban areas where the air quality is already poor and expected to get worse.
“The report is largely reaffirming that climate change is not fair,” Klee said. “It impacts the most vulnerable.”
The added heat stress is expected to cause more premature deaths and hospital visits, according to the report.
Pollen seasons are also expected to get longer and worse.
Going forward
Connecticut and its neighboring states, as well as others across the country have already implemented programs and initiatives to help slow climate change, including investing in alternative energy sources, encouraging people to drive electric vehicles or use public transportation. Some of the buses are also now electric.
The state also has built up its resiliency.
“We’re trying to invest in microgrids — islands of sustainable power that stay up when the grid goes down,” Klee said.
He said all of the states and federal government need to step up.
“This is not something to bury on Black Friday,” Klee said. “This is something that should be a road map and wake up call on what we need to do.”