A new international study has found that air pollution is linked to increased cardiovascular and respiratory death rates. The study is the largest of its kind to investigate the short-term impacts of air pollution on death, conducted over a 30-year period. The study analyzed data on air pollution and mortality in 24 countries and regions.
A good rainstorm can make a city feel clean and revitalized. However, the substances that wash off of buildings, streets and sidewalks and down storm drains might not be so refreshing. Now, researchers reporting in ACS' Environmental Science & Technology have analyzed untreated urban stormwater from 50 rainstorms across the US, finding a wide variety of contaminants that could potentially harm aquatic organisms in surface waters and infiltrate ground water.
Injecting carbon dioxide (CO2) deep below the seabed could be an important strategy for mitigating climate change, according to some experts. However, scientists need a reliable way to monitor such sites for leakage of the greenhouse gas. Now, researchers reporting in ACS' journal Environmental Science & Technology have studied natural sources of CO2 release off the coast of Italy, using what they learned to develop models that could be applied to future storage sites.
Pollution of lakes is a worldwide problem. Restoration attempts take a lot of time and effort, and even then they might backfire. A team of researchers led by the Netherlands Institute of Ecology (NIOO-KNAW) suggests a different approach. First, you have to determine to which of four different types your lake belongs, they write in the August issue of Science of the Total Environment. Spatial differences are the key to a successful restoration recipe.
When insects carry the pollen from one flower to another to pollinate them, the pollen must attach to and detach from different surfaces. Scientists from Kiel University have discovered that the mechanisms are far more complex than previously assumed. They differ depending on the duration of the contact and the microstructure of the plant surfaces. The results could be interesting for drug delivery and for developing alternative strategies in agriculture and food production.
For the first time scientists have been able to reconstruct the chemical composition of rainwater from 300-million-year-old minerals, allowing them to unpick some of the history of Brittany and Western France since the rain fell in the late Carboniferous period, just before the time of the dinosaurs. The results point to the area being mountainous and originally located close to the Equator. This work is presented at the Goldschmidt Geochemistry congress in Barcelona.
Researchers are increasingly studying the effects of environmental insults on psychiatric and neurological conditions, motivated by emerging evidence from environmental events like the record-breaking smog that choked New Delhi two years ago. The results of a new study publishing Aug. 20 in the open-access journal PLOS Biology by an international group of researchers using large data sets from the US and Denmark suggests a possible link between exposure to environmental pollution and an increase in the prevalence of psychiatric disorders.
Every day, people are exposed to myriad chemicals both natural and synthetic, some of which may affect human physical development. Researchers from Boyce Thompson Institute have discovered nacq#1, a natural compound produced by a soil roundworm that dramatically influences time to sexual maturity and lifespan in tiny amounts. Because nacq#1 and its related nuclear receptors are so similar between the worm and humans, miniscule amounts of small molecules could similarly impact human development and lifespan.
National or other emissions inventories of greenhouse gases that are used to develop strategies and track progress in terms of emissions reductions for climate mitigation contain a certain amount of uncertainty, which inevitably has an impact on the decisions they inform. IIASA researchers contributed to several studies in a recently published volume that aims to enhance understanding of uncertainty in emissions inventories.
Many companies are working on materials that would be as light and resistant as plastic but at the same time fully biodegradable. What if they could be made from.....rubbish? A modern, ecological (waste-free -- the conversion of raw material to product reaches 100%) and economical (does not require high temperatures or expensive catalysts) method of obtaining organic monomers is coming into being at the IPC PAS.