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Strategy for Solar Cells

Traditional solar cells are made of silicon, which has high power conversion efficiency and good stability. But they are relatively expensive and are reaching their practical and economic photovoltaic efficiency limits. Perovskites are regarded as the leading contender to replace silicon as the material of choice for solar panels. Perovskite solar cells are expected to …

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Humans Disrupting Ecosystems

It’s been several decades since ecologists realized that graphing the diet-size relationship of terrestrial mammals yields a U-shaped curve when aligning those mammals on a plant-to-protein gradient. As illustrated by that curve, the plant-eating herbivores on the far left and meat-eating carnivores on the far right tend to reach sizes much larger than those of …

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Warming Climate

The study published in Nature is the first to identify that an interaction between rising temperatures and land use changes, is driving widespread losses in numerous insect groups across the globe.   Lead author Dr Charlie Outhwaite (UCL Centre for Biodiversity & Environment Research, UCL Biosciences) said: “Many insects appear to be very vulnerable to …

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How Air Pollution Alters

The findings could lead to new approaches for preventing or treating the initial lung changes that lead to the disease.   Tiny, inhalable fine particulate matter (FPM) found in air pollutants has been recognised as a Group 1 carcinogen and a substantial threat to global health. However, the cancer-causing mechanism of FPM remains unclear. “Despite …

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Geoengineering

This is the first assessment of how geoengineering the climate could impact the burden of infectious diseases. The study focuses on solar radiation management (SRM), an intervention that hypothesizes emergency actions aimed at reducing dangerous impacts of climate change. One action that has been proposed is injecting aerosols into the stratosphere that reflect incoming sunlight, …

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What is Airborne Particulate Matter

Car air purifier market is able to drive away airborne particulate matter. It is a general term for solid and liquid particulate matter in the air. According to its particle size, it can be divided into coarse dispersion system (particle size >10μm) and colloidal dispersion system (0.001~10μm). Among them, the aerodynamic equivalent particle size is …

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Pacific Northwest Wildfires

The research, led by scientists at the National Center for Atmospheric Research (NCAR), found that levels of carbon monoxide — a gas that indicates the presence of other air pollutants — have increased sharply as wildfires spread in August. Carbon monoxide levels are normally lower in the summer because of chemical reactions in the atmosphere …

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