Researchers present first global analysis of how effective and topographic catchment areas differ.
Although less than one per cent of all water in the world is freshwater, it is what we drink and use for agriculture. In other words, it's vital to human survival. York University researchers have just created a publicly available water quality database for close to 12,000 freshwater lakes globally - almost half of the world's freshwater supply - that will help scientists monitor and manage the health of these lakes.
Analysis published in Scientific Reports is based on climate models for the mid-Pliocene period, which occurred 3 million years ago and shared characteristics with present-day warming.
Using high resolution paleoecological information obtained from fossilized footprints, a new study published in Science Advances presents ~120 thousand-year-old human and animal footprints from an ancient lake bed in northern Arabia. These findings represent the earliest evidence for humans in this part of the world and show that human and animal movements and landscape use were closely linked.
A new study shows that despite global commitments to address plastic pollution, growth in plastic waste, or 'plastics emissions' continues to outpace reduction. What's more, the study shows that even if governments around the world adhere to their ambitious commitments to curb plastic pollution, annual plastic emissions may increase more than six-fold by 2030.
For the first time, it is possible to accurately predict severe drought up to 18 months in advance in Tropical South America. Early warnings of upcoming droughts are imperative for mitigating the impact on millions of people depending on the Amazon rainforest ecosystem. Additionally, droughts threaten the delicate ecosystems of the rainforest in South America.
An international consortium of researchers under the aegis of CMIP6 has calculated new estimates for the melting of Earth's ice sheets due to greenhouse gas emissions and its impact on sea levels, showing that the ice sheets could together contribute more than 40 cm by the end of 2100.
In a simulation study, UTokyo researchers showed that limiting global warming to 1.5°C rather than 2°C will mitigate aridification in some regions of the world including the Mediterranean, western Europe, and southern Africa. However, Australia and some parts of Asia were simulated to become wetter rather than drier at both 1.5°C and 2°C of warming. These findings reveal the importance of targeted regional simulations of aridity levels to support policymaking decisions on global warming targets.
Turbulent air in the atmosphere affects how cloud droplets form. New research from Michigan Technological University's cloud chamber changes the way clouds, and therefore climate, are modeled.
First of its kind research estimates potential releases of mercury from thawing permafrost in high and low emissions scenarios. The researchers predicts that by 2200, the mercury emitted into the atmosphere annually by thawing permafrost could compare with current global anthropogenic emissions under a high emissions scenario.