COGNICURRENT

Scientists express concerns over the impacts of increasing space debris on the Earth's atmosphere, particularly on the ozone layer and solar radiation levels.

A UNAM researcher argues that the Hoy No Circula program is becoming ineffective in combating pollution in Mexico City and the State of Mexico amid rising ozone levels.

The Phase I environmental contingency due to air pollution in Mexico City and the State of Mexico continues with restrictions aimed at protecting public health and reducing ozone levels.

The environmental contingency due to ozone levels continues in Mexico City and the State of Mexico for the third consecutive day, as authorities seek to reduce health risks for residents.

An environmental contingency was declared in Mexico City due to high ozone levels, reaching 155 ppb in Coyoacán, exacerbated by weather conditions.

Air quality in Mexico City remains poor, particularly in four municipalities, despite avoiding a Doble Hoy No Circula restriction on February 11.

The air quality in Mexico City is reported to be critically poor, prompting alerts and the potential for environmental contingencies due to high levels of pollutants.

Madrid has met European air quality regulations for the fourth consecutive year in 2025, but nitrogen dioxide levels remain stagnant and ozone pollution worsens, indicating that the city is still off track for the 2030 standards.