Ecology

Displaying 161 - 170 of 173

Graphene filter could solve water crisis

Graphene filter could solve water crisis
A new type of graphene-based filter could be the key to managing the global water crisis, a study has revealed. The new graphene filter, which has been developed by Monash University and the University of Kentucky, allows water and other liquids to be filtered nine times faster than the current leading commercial filter. According to the World Economic Forum's Global Risks Report, lack of access to safe, clean water is the biggest risk to society over the coming decade.
10th March 2016

Wastewater treatment is an alternative to passive lagoon systems

Wastewater treatment is an alternative to passive lagoon systems
In a world first, a Flinders University designed wastewater treatment system has been accepted as an alternative to existing passive lagoon systems for use in South Australia. The new system is smaller, faster and more effective at cleaning wastewater and creates the potential to reclaim more water for alternative use, according to Flinders University's Professor Howard Fallowfield.
10th March 2016

World temperature could rise rapidly by 2020

World temperature could rise rapidly by 2020
Global warming could occur more quickly than expected, according to a new model by University of Queensland and Griffith University researchers. The model is the first to include 'energy use per person' as a predictive factor rather than focusing solely on economies or populations. It forecasts that population and economic growth combined with rising energy use per person could significantly increase global energy demand and CO2 emissions, causing world average temperature to rise by 1.5 degrees as early as 2020.
10th March 2016


Why does the terrestrial biosphere contribute to climate change?

Why does the terrestrial biosphere contribute to climate change?
For the first time scientists have looked at the net balance of the three major greenhouse gases—carbon dioxide, methane, and nitrous oxide—for every region of Earth's landmasses. They found surprisingly, that human-induced emissions of methane and nitrous oxide from ecosystems overwhelmingly surpass the ability of the land to soak up carbon dioxide emissions, which makes the terrestrial biosphere a contributor to climate change.
10th March 2016

Visualise Earth's geology in the cloud

Visualise Earth's geology in the cloud
How did Madagascar once slot next to India? Where was Australia a billion years ago? Cloud-based virtual globes developed by a team led by University of Sydney geologists mean anyone with a smartphone, laptop or computer can now visualise, with unprecedented speed and ease of use, how the Earth evolved geologically. The globes have been gradually made available since September 2014.
10th March 2016

The first global standards for aircraft emissions

The first global standards for aircraft emissions
Last month, the United States and 22 other countries agreed to the first-ever global carbon emissions standards for commercial aircraft. The standards, set by the United Nations' International Civil Aviation Organisation (ICAO), are estimated to reduce carbon emissions by more than 650 million tons between 2020 and 2040—roughly equal to the emissions produced by 140 million cars in a single year.
10th March 2016

Satellites provide missing information on climate change

Satellites provide missing information on climate change
An international team of scientists led by Prof. Daniel Rosenfeld from The Hebrew University of Jerusalem found a way to measure missing critical information needed to quantify manmade responsibility for climate change. In a paper published in the journal Proceedings of the National Academy of Sciences, the authors describe a new way to determine both cloud-base updraft speeds and quantify the aerosol particles' ability to create cloud droplets.
9th March 2016

Latest model technique sharpens climate model

Latest model technique sharpens climate model
A team from the University of Wyoming and Pacific Northwest National Laboratory improved a popular atmospheric model by adding a new way to depict carbon-containing atmospheric particles. The improvement accounts for fresh smoke that is composed almost entirely of organic and soot particles. These particles are not washed out from the atmosphere quickly, and may drift through the atmosphere, far from their source before removal.
4th March 2016

Consumers have huge environmental impact

The world's workshop - China - surpassed the United States as the largest emitter of greenhouse gases on Earth in 2007. But if you consider that nearly all of the products that China produces, from iPhones to tee-shirts, are exported to the rest of the world, the picture looks very different. "If you look at China's per capita consumption-based (environmental) footprint, it is small," says Diana Ivanova, a PhD candidate at Norwegian University of Science and Technology's Industrial Ecology Programme.
4th March 2016

Clean energy could stress global water resources

Efforts to reduce greenhouse gas emissions in the energy sector could lead to greater pressure on water resources, increasing water use and thermal water pollution. Dedicated adaptation measures will be needed in order to avoid potential trade-offs between the water and climate change impacts of the energy system.
4th March 2016


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