Extreme heat, dry summers main cause of tree death in Colorado's subalpine forests
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Even in the absence of bark beetle outbreaks and wildfire, trees in Colorado subalpine forests are dying at increasing rates from warmer and drier summer conditions, found recent University of Colorado Boulder research.
A genetic analysis of fruit in the mandarin family has unraveled a complex journey from the mountainous region of southern China to the markets of Okinawa, says researchers from the Okinawa Institute of Science and Technology Graduate University.
Similar to the election needle and the stock market index, scientists have developed a new tracking system to detect danger to rainforests around the world. The data to build the index was culled from advanced satellite measurements of climate and vegetation of each tropical region on Earth.
An international team of scientists has reported strong indications of freshened groundwater offshore the coastline between Valletta and Marsascala, in the south-east of Malta.
Hydropower has massive potential as a source of clean electricity, and the Indus basin can be a key player in fulfilling long-term energy storage demands across Africa, Asia, Europe, and the Middle East. IIASA researchers explored the role the Indus basin could play to support global sustainable development.
What The Study Did: Credit reports were analyzed to estimate the amount of medical debt in collections nationally and by geographic region and income group and its association with Medicaid expansion under the Affordable Care Act.
Analysis of children and young people's proximity to woodlands has shown links with better cognitive development and a lower risk of emotional and behavioural problems, in research led by UCL and Imperial College London scientists that could influence planning decisions in urban areas.
The economic and environmental pros and cons of melting Arctic ice creating shorter shipping routes through the polar region are weighed up in ground-breaking research from UCL experts in energy and transport. They conclude that policy makers must properly assess the environmental trade-offs and costs in addition to the commercial benefits and opportunities in Arctic shipping. The authors also want to see more incentives to drive technological developments that will accelerate the uptake of green fuels and technologies.
In a new study, published in the journal Nature, researchers looked at samples from rocks spanning the last three billion years and found evidence of a dramatic change in how the carbon cycle functioned about 400 million years ago, when plants started to colonise land.
For the first time, researchers have measured the flux variations of greenhouse gases (CO2 and CH4) in typical glacial basins in High Mountain Asia. They have discovered that rapid cryospheric retreat has made the basins strong sources of carbon with positive methane and CO2 fluxes. While this is partially offset by proglacial river runoff, the findings suggest that these variations should be considered in regional CH4 and CO2 climate change budgets.