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Climatic drivers of honey bee disease revealed

A new study has found that increasing temperatures and heavy rainfall reduce the prevalence of Varroa mite disease in UK honey bee colonies, while heavy wind reduces its severity. Climate change is predicted to impact the risk of European foulbrood disease, with a hot spot identified in the South West England.

SourceNewcastle University·JournalScientific Reports·TypeComputational simulation/modeling·DateNov 9, 2021

Does environmental stress drive migration?

A comprehensive analysis of 178 countries reveals that social factors, such as income and education, play a more important role in explaining migration than environmental factors. The study found that income was the most important factor in some countries, while health was key in areas with high in-migration

SourceAalto University·JournalEnvironmental Research Letters·DateNov 5, 2021

Harnessing Thor’s Hammer -- How forensic science is unlocking the mysteries of fatal lightning strikes

Researchers developed a tool to investigate cause of death when skeletonised remains are recovered, providing a breakthrough in forensic lightning pathology. The study identified unique markers of lightning damage deep within the human skeleton, allowing for recognition of lightning strikes even when only dry bone survives.

SourceUniversity of the Witwatersrand·JournalForensic Science International Synergy·TypeExperimental study·DateNov 3, 2021

Climate change to stir up global agriculture within next decade, NASA/PIK study finds

A NASA/PIK study found that new climate conditions will push crop yields outside of their normal range in more regions, particularly in breadbasket areas. This could lead to severe losses for farmers unless they adapt quickly by changing planting dates or using different crop varieties.

SourcePotsdam Institute for Climate Impact Research (PIK)·JournalNature Food·TypeComputational simulation/modeling·DateNov 1, 2021

People may prefer climate change policies that give incentives, find energy alternatives

Participants preferred policies that used incentives to encourage eco-friendly choices, particularly when they targeted businesses. In contrast, policies that focused on energy alternatives and used incentives were also supported. The researchers found that policy support was influenced by the type of change targeted, who was targeted,...

SourcePenn State·JournalJournal of Environmental Psychology·TypeObservational study·DateOct 27, 2021

Scientists discover how forest fires influence rain cloud formation in the Amazon

A Brazilian study reveals that forest fires and wildfires modify the freezing process of cloud droplets, altering natural cloud functioning and potentially impacting precipitation. The research used a large dataset to show that aerosols emitted by fires can affect cloud formation in southern Amazonia during the rainy season.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalNature Communications·TypeData/statistical analysis·DateOct 27, 2021

Tiny microscopic hunters could be a crystal ball for climate change

Researchers at Duke University used mini ecosystems to test the effects of warming on bacteria-eating protists. They found that simple measurements of species traits could predict their response to temperature, shedding light on how climate change will alter microbial communities and influence the pace of global warming.

SourceDuke University·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateOct 25, 2021

Climate change will diminish the number of birch trees in Bavaria by the end of the century

A mathematical model based on 30 years of pollen data predicts a decline in pollination in Bavarian forests due to climate change. The study forecasts a reduction in birch trees in the region by the end of the century, with warmer summers initially favoring pollen production but ultimately leading to a decline in plant populations.

SourceUniversity of Córdoba·JournalGlobal Change Biology·DateOct 20, 2021

No silver bullet

Researchers challenge long-held notion that humans are bad for ecosystems, finding no correlation between remoteness and coral reef resilience. Instead, areas with higher human influence may recover faster from disturbances due to shifts in coral population dynamics.

SourceUniversity of California - Santa Barbara·JournalGlobal Change Biology·DateOct 20, 2021

Climate change affects animal behavior

A study on over 100 species found that climate change affects animal behavior, including changes in aggression, activity, and sociability. The researchers believe that behavioral changes can serve as a buffer for animals to avoid negative effects of environmental change.

SourceUniversity of Helsinki·JournalOikos·TypeMeta-analysis·DateOct 19, 2021

Climate change caused the devastating floods in part of Brazilian´s Southeast region, study says

A study found that climate change increased the probability of heavy rainfall by 70% in Brazil's Minas Gerais state, leading to severe flooding, deaths, and massive damage. The extreme event caused over 90,000 people to be temporarily homeless and resulted in significant economic losses.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalClimate Resilience and Sustainability·DateOct 19, 2021

Climate change and human pressure mean migration may be “no longer worth it”, say researchers

Researchers warn that climate change and human pressure have eroded benefits of long-distance migration for animals, leading to lower reproductive success and higher mortality. This has serious consequences for ecosystem structure and function, with many species unable to adapt to changing environmental conditions.

SourceUniversity of Bath·JournalTrends in Ecology & Evolution·TypeLiterature review·DateOct 18, 2021

Increases in extreme humid-heat disproportionately affect populated regions

A new study by Washington State University scientists finds that people living in areas with humid-heat extremes are bearing the brunt of the impact. The researchers identify a greater increase in population exposure to humid-heat as compared to dry-heat, emphasizing the importance of understanding humidity changes in a warming world.

SourceWashington State University·JournalGeophysical Research Letters·TypeExperimental study·DateOct 13, 2021

Insects in the light of land use and climate

A new study published in Nature Communications finds that insect biomass is higher in warmer temperatures, while diversity declines in agricultural environments compared to semi-natural habitats. Researchers recommend increasing green spaces in urban areas and promoting forest habitats to mitigate climate change.

SourceUniversity of Würzburg·JournalNature Communications·TypeObservational study·DateOct 12, 2021

Human behavior sabotages CO2-reducing strategies

A new study by University of Utah researchers found that energy efficiency improvements and renewable energy investments had limited impact on reducing CO2 emissions. However, policies aimed at improving energy efficiency had no effect, while investment in renewable energy sources led to increased levels of CO2 emissions in the residen...

SourceUniversity of Utah·JournalGlobal Environmental Change·TypeData/statistical analysis·DateSep 29, 2021

Dramatic liana increases in old-growth tropical forests associated to natural disturbance and climate change

A 10-year study in Panama's Barro Colorado Island found that liana density increased dramatically due to natural canopy disturbance, with most of the growth attributed to gaps in the canopy. The study suggests that environmental factors like climate change may also be contributing to this phenomenon, but to a lesser extent.

SourceSmithsonian Tropical Research Institute·JournalEcology Letters·DateSep 29, 2021