A History of Short Words

From the New York Times Crossword Puzzle

EPA

Wed, 17 Apr '24
Lead regulator, for short
Sat, 24 Feb '24
Org. that regulates fertilizers
Wed, 7 Feb '24
Org. with an Office of Water
Sun, 7 Jan '24
Superfund grp.
Tue, 2 Jan '24
Green letters?
Mon, 13 Nov '23
Org. concerned with emissions
Thu, 9 Nov '23
Org. with grants for asbestos removal
Mon, 25 Sep '23
Org. that regulates hazardous waste
Sun, 20 Aug '23
Grp. that measures 1-Across
Sun, 9 Jul '23
Org. created the same year as Earth Day
Tue, 6 Jun '23
Org. established by Nixon
Mon, 5 Jun '23
Clean Air Act enforcer, for short
Sun, 28 May '23
Grp. regulating pesticides
Thu, 27 Apr '23
Greenhouse gas regulator, for short
Mon, 27 Mar '23
Org. with pollution solutions
Sun, 19 Mar '23
Org. established by 111-Down
Mon, 20 Feb '23
Government grp. employing ecologists
Tue, 10 Jan '23
Energy-monitoring org.
Thu, 22 Sep '22
Clean water org.
Sun, 18 Sep '22
Clean Air Act org.
Tue, 13 Sep '22
Clean air org.
Wed, 27 Jul '22
Clean Air Act org.
Thu, 14 Apr '22
Water monitoring grp.
Sat, 5 Mar '22
Org. created in the wake of "Silent Spring"
Sun, 2 Jan '22
Clean energy grp.
Mon, 25 Oct '21
Smog-monitoring org.
Tue, 5 Oct '21
Emissions control grp.
Mon, 19 Jul '21
Clean air and water org.
Sun, 18 Jul '21
Fuel economy authority, for short
Fri, 9 Jul '21
Org. with an Office of Air and Radiation
Fri, 21 May '21
Org. established partly in response to Rachel Carson's "Silent Spring"
Wed, 12 May '21
Org. that launched WaterSense in 2006
Sun, 25 Apr '21
Org. with lots of money to waste?
Tue, 6 Apr '21
Org. since Nixon's presidency
Sun, 7 Mar '21
Org. that takes the lead on lead?
Sun, 28 Feb '21
Cleanup grp.
Sat, 20 Feb '21
Org. with resources on smart growth
Wed, 17 Feb '21
Antipollution org.
Tue, 16 Feb '21
Org. that monitors air quality