Environmental Science

SEPTEMBER 7, 2018

They are water vapor, carbon dioxide, methane, nitrous oxide, ozone, CFCs, and hydrofluorocarbons. Half-life : the time it takes for any pollutant (usually refers to radioactive material but also includes other toxic material) to halve its effect on the environment. Indoor air is anything contained with a building.

Government 52

Government Law Waste Clean Air Act 52

Union of Concerned Scientists

MAY 19, 2022

Outside of bird protection acts of the early 20 th century, protections for water, air and the atmosphere are a late 20 th -century development, created in the wake of Rachel Carson’s 1962 treatise on pesticides, Silent Spring. A pollutant is a subject that is harmful to human beings or to animals or to plants,” he said.

Carbon Dioxide 299

Carbon Dioxide Climate Change Clean Water Act Fossil Fuels 299

Union of Concerned Scientists

MARCH 6, 2025

Dekleva was accused during her first stint in President Trumps EPA of pressuring employees to approve new chemicals and colluding with industry to weaken the Toxic Substances Control Act.

Climate Change 348

Climate Change Fossil Fuels Toxic Substances Control Act Regulations 348

Union of Concerned Scientists

MARCH 6, 2025

Dekleva was accused during her first stint in President Trumps EPA of pressuring employees to approve new chemicals and colluding with industry to weaken the Toxic Substances Control Act.

Climate Change 246

Climate Change Fossil Fuels Toxic Substances Control Act Regulations 246