Category Archives: Climate

volunteer planting a tree at Arcadia

Planting a Forest with the Climate in Mind

More than 50 volunteers turned out in the last days of a mild October to help restore a floodplain forest at Arcadia Wildlife Sanctuary in Northampton. Together, these nature heroes planted around 1,500 of the 2,000 trees and shrubs going in the ground before winter.

Volunteer planting a tree at Arcadia
Volunteer at Arcadia

In this first phase of the project, 8.5 acres of field that is unproductive for both farming and grassland bird habitat will be turned back into land dominated by trees—including pin oaks, silver maples, and even American elm.  

Floodplain forests are uncommon in Massachusetts, hosting rare plants and wildlife habitat, storing stormwater during floods, and, like all forests, keeping carbon out of the atmosphere. 

But visitors to Arcadia who walk the Fern Trail are lucky to be able to see the large shagbark hickories and tulip trees, that make up one of the best examples of this natural community in the state. The restoration project will significantly expand Arcadia’s protection of this special forest type. 

Climate Implications 

This is a climate adaptation project, preparing us for the impacts that have already begun and will be continuing through the coming years and decades. 

Like all living things, trees have optimal conditions where they grow and reproduce. As temperatures continue to rise because of climate change, tree species’ ideal habitats are shifting northward; however, natural movement rates over generations of trees are generally too slow to keep up with rapid warming.  

This restoration project assists the trees’ northward migration in two ways.  First, for some of the species native to the Connecticut River Valley, saplings are being sourced from nurseries further south so they go into the soil already better adapted to warmer climates.  

Second, volunteers are planting trees that currently don’t occur in the wild in Massachusetts, such as sweet gum, a tree that exists in floodplain forests further south, up to southern Connecticut. These choices increase the likelihood that the forest will flourish in the future, since Massachusetts’s climate is projected to become comparable to the climate of the south between 2070 and 2100.  

The Massachusetts Division of Ecological Restoration has selected this restoration for Priority Project designation and have been a key partner in the process. Mass Audubon is also partnering with the Nature Conservancy’s Christian Marks, who has planted his Dutch-elm-disease-tolerant American Elms on the site. 

— Jonah Keane, Arcadia’s Sanctuary Director

PV 101: The Power of the Sun

Sunlight has been an important tool for humans for centuries, from tracking time via sundials to starting fires through a magnifying glass. Over a series of discoveries and novel inventions, scientists were able to develop special metal cells that expand what we can use sunlight for by turning it into energy.

Solar panels at Mass Audubon Oak Knoll wildlife sanctuary.

A Brief History Lesson

Photovoltaic cells are what we more commonly call “solar panels,” and you might have already spotted a few on rooftops of homes and commercial buildings. Photovoltaics refers to the technology inside the panels that converts sunlight directly into electricity. When particles of sunlight hit a solar panel, it creates a microscopic reaction that separates electrons from the atoms they reside in. This separation results in an electrical current that we can harness and use.   

Edmond Becquerel, a French physicist, first discovered the photovoltaic effect in 1839. During an experiment, he noticed that when light struck a metal electrode (a conductor through which electricity travels), it created an electrical voltage.

Then, in 1873, Willoughby Smith, an English electrical engineer, discovered a process to make the chemical element selenium conduct electricity when it absorbs light.

Ten years later, American inventor Charles Fritts constructed the first working solar panel by spreading selenium onto a copper plate and covering it with an extremely thin, semi-transparent layer of gold.

A (Solar) System of Benefits

Currently, people rely on fossil fuels for most of our energy needs. Fossil fuels are finite resources found in the earth, such as coal, oil, and natural gas. If we continue relying on these resources, we will eventually run out of them. Not to mention, continued use means we keep releasing excess greenhouse gasses into the atmosphere – the root of climate change. In fact, burning fossil fuels is responsible for 65% of carbon dioxide  in the atmosphere.

Solar energy, on the other hand, is cleaner and limitless. Let’s put solar in perspective: The sun produces more energy a day than the world uses in one year. For example, the energy consumption for the entire planet in 2017 was 17.7 terawatt-year (TWy), compared to the solar energy available per year, which is 23,000.0 TWy.

A Future Powered by Clean Energy

Mass Audubon has committed to reaching net zero carbon emissions as an organization by 2050 – and solar energy is one way we’re accomplishing this goal. In fact, 100% of our energy is renewable – with about 37% being generated on site, and the remaining purchased from green sources. Check out this map to find out if there are photovoltaic arrays at a wildlife sanctuary near you and see how much energy they’re producing.

If the evolution and benefits of solar photovoltaics have inspired you, you can also be part of the solar solution. You can install solar panels, purchase green energy, consider community solar options, or see if your community is participating in Green Municipal Aggregation. If solar development is coming to your community, be sure to read up on our recommendations for solar siting to preserve important habitats and ecosystem services.

— Abdishakur Ahmed, Energy and Climate Change Intern