Activists protest at the plant that contributes to a third of the Capitol's greenhouse gas emissions.
WASHINGTON – Hundreds of environmental activists were expected to protest on Monday at the plant that heats and cools the Capitol.
The protesters want Congress to pass a bill reducing greenhouse gasses.
Despite attempts by Congress to clean it up, the 99-year-old plant sill burns coal. The plant also accounts for a third of the legislative branch’s greenhouse gas emissions.