We created Earth in Action to provide a lens into what's happening on our planet, as it happens. Whether it's something typical, like the current air temperature, or an extreme event like a major dust storm, we wanted to provide an opportunity for people to see them.
"What surprised me is we are still seeing so many visits to emergency departments associated with very common household cleaning products," Lara McKenzie, Ph.D., stated, emphasizing the ongoing issue despite safety advancements.
In 2019, scientists found that balloons eaten by seabirds are more likely to kill them than other kinds of plastic yet they do not seem to have been earmarked in the same way as, for example, plastic straws.
I was that person who only changed their HVAC filter when it looked like it had grown its own ecosystem. Richie Drew, Vice President of Operations at One Hour Heating & Air Conditioning, puts it bluntly: "Dirty filters can reduce airflow, increase dust in your home and strain your heating system." Think about it this way: your HVAC filter is like the bouncer at an exclusive club, except instead of keeping out people without the right shoes, it's blocking dust particles from circulating through your home.
Midlife is a sensitive biological window where the body becomes more susceptible to age-related stressors, which may explain why this group responds more strongly to chemical exposure. We suspect that men may be at higher risk because the aging markers we analysed are heavily influenced by lifestyle factors such as smoking, which can compound the damaging effects of these pollutants.
A potent neurotoxin capable of causing lifelong damage to the lungs, brain, skin and other organs, mercury is strictly regulated worldwide. Children, in particular, can suffer severe developmental impairment when exposed. A trace element that occurs naturally in rocks such as limestone, as well as in coal and crude oil, mercury remains locked underground for millions of years, largely entering the ecological cycle through human activity.
Many human activities - from improper disposal of waste to the degradation of car tyres - release small plastic particles, which have infiltrated the atmosphere, oceans and other ecosystems. These include nanoplastics - particles measuring less than 1 micrometre across - and microplastics, which range from 1 micrometre to around 5 millimetres. They've entered our bodies and brains, and scientists are still working to understand their effects on people's health.
The household burning of plastic for heating and cooking is widespread in developing countries, suggests a global study that raises concerns about its health and environmental impacts. The research, published in the journal Nature Communications, surveyed more than 1,000 respondents across 26 countries. One in three people reported being aware of households burning plastic, while 16% said they had burned plastic themselves.
The conventional approach to evaluating the impact of air pollution is to focus on a single exposure during a fixed period of time. But evidence suggests that contaminants work together, magnifying the damage to people's lungs. Conventional studies fail to probe synergistic effects. They also ignore the cumulative effects of lifelong exposures to pollutants, known as the exposome. Researchers need to shift away from single-pollutant studies and towards those involving a broad range of exposures.
One thing that stood out was the home environment. This was the largest contributor to children's daily particle pollution exposure more than school or commuting. This was mainly due to indoor sources such as wood burning and indoor smoking. Short peaks in particle pollution were linked to home cooking and secondhand tobacco smoke. Home heating with a fire or stove was linked to longer exposures. In some cases, these persisted overnight in children's bedrooms as fires remained lit or smouldering with poor ventilation.