As temperatures heat up, there are some bodies of water you won’t want to swim in. The annual report card for the Charles River shows there are still improvements to be made. The two sections of the ...

The Charles River, despite past improvements, has stalled in its progress toward becoming consistently swimmable. Polluted ...

State Police warn people to not walk on Charles River ice 02:32. CAMBRIDGE - It may be bitterly cold outside in Boston, but it's not cold enough for one very dangerous activity.

Meanwhile, he’s earned support from the Charles River Watershed Association, a conservation group that collects more than 50,000 pounds of litter from the river each year.