article thumbnail

Puzzling methane rise in 2020 linked to pandemic lockdown effects

New Scientist

A spike in the greenhouse gas methane in 2020 may be explained in part by a drop in nitrogen oxide emissions during the covid-19 pandemic

article thumbnail

Ask a Scientist: UCS Transportation Program Adds Equitable Mobility to its Portfolio

Union of Concerned Scientists

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. Even so, cars and trucks are still making us sick—and killing us. Transit agencies in Washington, D.C.,

Insiders

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

article thumbnail

Ohioans Stuck Burning Coal, Burning Cash

Union of Concerned Scientists

6 was enacted, the plants have emitted more than 29 million tons of heat-trapping carbon dioxide, 28,000 tons of nitrogen oxides (NOx), and 16,000 tons of sulfur dioxide (SOx). That amount, however, is less than what Ohio households have already paid in coal subsidies since January 2020. Ohioans pay for OVEC losses.

article thumbnail

Ask a Scientist: Two Dozen States Can Meet 100 Percent of Electricity Demand with Renewables by 2035

Union of Concerned Scientists

From 2020 to 2040, solar generation in these states jumps nearly ninefold and wind generation more than sevenfold. Emissions of sulfur dioxide and nitrogen oxides from power plants in alliance states drop 88 percent and 77 percent respectively by 2040. percent in 2020 to 3 percent in 2040 under the 100-percent RES scenario.

article thumbnail

A 100% Renewable Energy Future is Possible, and We Need It

Union of Concerned Scientists

From 2020 to 2040, solar generation in these states grows nearly ninefold and wind generation more than sevenfold. Sulfur dioxide (SO 2 ) and nitrogen oxides (NO x ) emissions from power plants in USCA states fall 88 and 77 percent respectively by 2040, compared with 27 and 18 percent under current policies and plans.

article thumbnail

Dear Maryland: It’s Time to Drive Clean Trucks and Buses

Union of Concerned Scientists

million registered vehicles, they contribute 39 percent of nitrogen oxide (NOx) emissions, 48 percent of fine particulate matter (PM2.5), and 21 percent of climate-changing emissions from all on-road vehicles in the state. Though medium- and heavy-duty trucks and buses make up only nine percent of the state’s 4.2

article thumbnail

The State of the Air in 2024? Not Great

Union of Concerned Scientists

The air quality for this report was calculated using data reviewed by EPA from 2020, 2021, and 2022. come from reactions of industrial pollutants (nitrogen oxides and sulfur oxides) with sunlight and unfinished fuel combustion. come from burning fossil fuels and pesticide use, and ultrafine particles (PM0.1)

2024 156