Union of Concerned Scientists

APRIL 3, 2025

In turn, this means a given percentage of hydrogen (by volume) blended in doesnt lead to the same percentage reduction in the amount of gasor to the same reduction of carbon emissions. A blend with 50% hydrogen by volume, for example, gets you only 23% less smokestack carbon pollution.

Renewable Energy 142

Renewable Energy Electricity Carbon Dioxide Carbon Emissions 142

Union of Concerned Scientists

MARCH 12, 2024

In 1963, a typical car—which ran on leaded gasoline without pollution control devices— emitted 520 pounds of hydrocarbons, 1,700 pounds of carbon monoxide, and 90 pounds of nitrogen oxide every 10,000 miles traveled. Tailpipe pollution also is a major contributor to the climate crisis.

Nitrogen Oxides 284

Nitrogen Oxides Carbon Monoxide Electricity Law 284

Union of Concerned Scientists

JUNE 14, 2023

Last month, the Environmental Protection Agency (EPA) proposed new power plant carbon pollution standards that, if strengthened, would go a long way to help meet the Biden administration’s goal of slashing carbon emissions in half from 2005 levels by the end of this decade. What would they accomplish? Not even close.

Fossil Fuels 235

Fossil Fuels Carbon Emissions Nitrogen Oxides Clean Air Act 235