Tag Archives: climate change

A King of a Challenge

Posted on October 14, 2020 by Rishya N.
King tides flooding Boston on March 10, 2020 via MyCoast, a project by the Massachusetts Office of Coastal Zone Management.

Ebbing and flowing, tides are a constantly moving part of nature. At high tide, waters creep up the shore, filling salt marshes and covering our beaches. At low tide, we watch the waters pull back, revealing a plethora of exciting marine critters and hidden landscapes to discover.

Royally High Heights

Tides are influenced by the gravitational forces exerted by the moon, sun, and Earth’s rotation. According to the National Oceanic and Atmospheric Administration, these are one of the most reliable natural phenomena in our world – even though both high and low tides range in intensity. The highest of all high tides has a very fitting name: the king tide.

“King tide” is an informal term that refers to the time (once or twice a year) when tides reach exceptionally high levels. These king tides occur in conjunction with new moons and full moons when the Earth is closest to the moon.

What we “Sea” in the Tides

We know that climate change impacts are happening here and now, and will only become more severe in the future. One we can see right now is sea level rise. We already experience sea level rise impacts through increased coastal flooding, extreme storm surges, beach erosion, and indicators like the presence of flood-tolerant flora (such as cordgrass) in high salt marsh areas. King tides are a way to help us understand and adapt to this threat.

That’s because while king tides are a purely natural phenomenon, they actually allow us to visualize what normal high tides will look like by 2050 if we continue to burn fossil fuels and release greenhouse gas emissions at the rate we are currently. King tides, even just bi-annually, can lead to coastal erosion and flooding, which puts shoreline communities at risk. These highest tides serve as a reminder that we must urgently act to both adapt to and mitigate the effects of climate change.

Calling All Community Scientists

That’s where you come in! We need all hands on deck to document king tides. Community photographs help scientists analyze coastal vulnerability to flooding and prepare ways for us to adapt to climate change.

So grab your camera, and find out when and where your nearest king tide will be this month, which are expected to be between 11 and 13 feet. Plan to arrive at least 15 minutes before the listed time as local conditions may vary. Once you’ve snapped a photo, submit them to the King Tides Project at MyCoast for this climate science initiative.

But don’t stop there! Save your photos to share with us on Facebook or via email.

Remember, safety first – visit MyCoast for tips and tricks on how to stay safe and still snag the best photo.

Find a King Tide Near You

Check out our map and list of king tide locations in Massachusetts along with their date and time to see if there’s a photo-opportunity near you. If you don’t see your community’s coast on our map, it means while you will be experiencing high tides, you won’t be seeing king tides.

Stay tuned on our social media pages for details on future king tides, including dates, times, and locations.

Download our maps here:

The Message in our Forecasts

Posted on October 7, 2020 by Rishya N.

There are not-so-hidden messages in the weather and storm trends we’ve been seeing. What does it mean when our winters are shorter and milder or when we experience an increase in storm-induced flooding?

It means our climate is changing.

Flooding in Downtown Boston © Matt Beaton, Former Secretary of the Massachusetts Executive Office of Energy and Environmental Affairs.

Climate Versus Weather

While weather refers to short-term changes to the atmosphere, climate encompasses long-term trends and patterns – such as average temperatures. Climate change, therefore, is the lasting shift in long-term patterns because of the excess greenhouse gasses we release into the atmosphere by burning fossil fuels.

Shifting Seasons

Massachusetts, along with the rest of the world, is gradually getting warmer on average, and rising temperatures affect the intensity and duration of our four seasons. Spring temperatures arrive sooner than they have before, hotter summers last much longer, and winters tend to be milder and shorter.

These shifts are evidenced by their impacts on the nature around us. You might have noticed your favorite buds and blossoms sprout earlier every year. Perhaps you’ve seen your favorite birds breed or migrate sooner. You might have even noticed a decline in populations facing new threats because of shifting seasons: like bees that missed early blossoms or moose that struggle under the now thriving winter tick.

Weather Weirding & Temperature Extremes

These weather-based impacts aren’t only about the gradual and consistent changes. They also comprise temperature snaps – sometimes referred to as “weather weirding.” Such snaps are characterized by abnormally cold (or hot) temperatures compared to what the average temperature should be: like a freezing cold day in the middle of spring, or an incredibly warm day towards the end of winter.

Dr. Greg Skomal, Senior Fisheries Scientist at the Massachusetts Division of Marine Fisheries, explained that it was most likely cold snaps that led four thresher sharks to strand in Wellfleet and Orleans in 2018 as they tried to move towards warmer waters at a much faster pace than normal.

Surges in Storms

As temperatures increase, so too does evaporation of moisture and water – so while our summers are getting really hot, they’re also getting really dry, which can lead to long summer droughts. But this extra-evaporating effect has a flip side. All the additional moisture gets sent into the atmosphere, which increases precipitation (rainfall, snow, sleet, or hail).

In tandem with sea level rise, we’re watching extreme weather events, storm surges, and significant flooding rise in frequency and intensity around us because of an increase in the amount of water vapor in the atmosphere and changes in sea-surface temperatures.

Nantasket Beach flooding during Hurricane Sandy © Jeff Cutler, Flickr.

Forecasting Hope

Whether you live on the coast, in the city, or amidst our region’s forests, weather and storms impact all of us and the nature around us. While something as intangible as atmospheric changes might seem near-impossible to tackle, we have good news: you can make a difference.

Here are some ways you can join us in fighting climate change to protect our world:

Look to nature for climate solutions.

Nature can be our first line of defense when it comes to buffering extreme storms and helping us, and the wildlife we love, adapt to climate change. Support one of our urgent, regional land projects to protect these important, natural climate allies.

Take a climate pledge to mitigate climate change.

Climate mitigation tackles the crisis at its roots: the greenhouse gasses we emit. Remember to challenge your friends, family, and community to take these pledges with you – we can make a difference when we work together.

Sign up for our monthly e-newsletter, Climate Connection.

Every month, we’ll send you updates on climate information, action, community solutions, and how you can have an impact.