• Air and climate

    Gases, particles, and toxics in the air you breathe can harm your lungs and threaten your health. Some air pollutants, known as greenhouse gases, form an atmospheric "blanket" that traps heat and causes severe and unstable weather. Learn what the Department of Environmental Protection is doing to reduce the risks posed by air pollution and climate change.

  • Air and climate laws, regulations, and policies

    Gases, particles and toxics in the air we breathe can harm our lungs and threaten our health. The Department of Environmental Protection is working continuously to reduce the risks posed by air pollution and climate change. Find regulations, standards, policies, and environmental laws on air and climate here.

  • Climate change

    Wondering what all the buzz is about climate change? Find out how climate change is affecting fish, wildlife, and humans and learn about the state's climate change programs, including the Regional Greenhouse Gas Initiative (RGGI).

  • Climate change and aquatic ecosystems

    Global warming could lead to large-scale food and water shortages and have catastrophic effects on wildlife. Learn about the climate change-related threats to Massachusetts coastal and freshwater environments and the strategies developed by the Division of Ecological Restoration to restore and protect these habitats.

  • Global Warming Solutions Act

    The Global Warming Solutions Act is a comprehensive regulatory program to address climate change in Massachusetts. The goal is to reduce greenhouse gas (GHG) between 10 percent and 25 percent below statewide 1990 GHG emission levels by 2020 and 80 percent below statewide 1990 GHG emission levels by 2050. Discover how the state plans to meet these goals.

  • Weather preparedness

    Natural hazards such as floods, hurricanes, blizzards, droughts, extreme heat, earthquakes, tornadoes, and lightning-filled thunderstorms affect thousands of people every year. We need to know what our risks are from natural hazards and take these sensible precautions to protect ourselves, our families, and our communities.

  • Weather warnings

    Stay a step ahead of the weather in your area with online watches, warnings, and advisories from the National Weather Service office.