Flux continu

Ultrafine particles (UFPs) are aerosols with an aerodynamic diameter of 0.1 µm (100 nm) or less. There is a growing concern in the public health community about the contribution of UFPs to human health. Despite their modest mass and size, they dominate in terms of the number of particles in the ambient air. A particular concern about UFPs is their ability to reach the most distal lung regions (alveoli) and circumvent primary airway defenses. Moreover, UFPs have a high surface area and a capacity to adsorb a substantial amount of toxic organic compounds. Harmful systemic health effects of PM10 or PM2.5 are often attributable to the UFP fraction. In this review, we examine the physicochemical characteristics of UFPs to enable a better understanding of the effects of these particles on human health. The characteristics of UFPs from diesel combustion will be discussed in the greatest detail because road vehicles are the primary source of UFP emissions in urban pollution hotspots. Finally, we will elaborate on the

Le navire de croisière de la compagnie Royal Caribbean a largué les amarres à Miami. Même s’il se veut écolo, il est encore loin de l’être.

An increase in the pace at which sea levels are rising threatens “a mass exodus of entire populations on a biblical scale”, the UN secretary general has warned. The climate crisis is causing sea levels to rise faster than for 3,000 years, bringing a “torrent of trouble” to almost a billion people, from London to Los Angeles and Bangkok to Buenos Aires, António Guterres said on Tuesday. Some nations could cease to exist, drowned under the waves, he said.

The new study shows that every increment of sea level rise will cover more than twice as much land as older models predicted, and marks another advance in providing more accurate models of rising seas

Fondée en 1977, Sea Shepherd Conservation Society (SSCS) est une organisation internationale à but non lucratif de conservation de la faune et de la flore marines. Notre mission est de mettre un terme à la destruction des écosystèmes marins et au massacre des espèces dans le but de conserver et de protéger la biodiversité des océans du monde entier.

IGAD’S Climate Prediction and Applications Centre (ICPAC) today announced that the October to December (OND) 2022 forecast shows high chances of drier than average conditions across most parts of the Greater Horn of Africa. In particular, the drought affected regions of Ethiopia, Kenya, and Somalia are expected to receive insufficient rainfall until the end of the year.

The goal of our project is to compile in a systematic manner the evidence in support of transmittable diseases being aggravated by climate hazards. To ensure a systematic review, we scrutinized the first 200 references in Google Scholar that resulted from using as keywords each possible combination of ten climate hazards (i.e., warming, heatwaves, precipitation, floods, drought, fires, sea level, storms, natural cover change, ocean climate change) and “human diseases”. We selected papers that reported cases examples of diseases regardless of whether impacts were positive or negative. Selected papers were read and from them extracted any mention to cases examples ofdiseasesaggravated by climate hazards.

Le «Wonder of the Seas», géant des mers, a été empêché pendant un grosse heure d’accoster dans le port de Marseille par des militants du collectif Stop croisières postés sur des canoës. ... 20 % des émissions maritimes dues aux croisières.

The IPBES #PandemicsReport is one of the most scientifically robust examinations of the evidence and knowledge about links between pandemic risk and nature since the COVID-19 pandemic began - with 22 of the world's leading experts from fields as diverse as epidemiology, zoology, public health, disease ecology, comparative pathology, veterinary medicine, pharmacology, wildlife health, mathematical modelling, economics, law, and public policy as authors of the report. The expertise of the 22 authors was further augmented by contributions and knowledge resources from the Convention on Biological Diversity, the Intergovernmental Panel on Climate Change, the Convention on International Trade in Endangered Species, the United Nations Convention to Combat Desertification, and the World Health Organization - as well as a peer review process.

Against the backdrop of the water crisis in the Colorado River Basin, where the country's largest reservoirs are plunging at an alarming rate, California's two largest reservoirs — Shasta Lake and Lake Oroville — are facing a similar struggle.