In lands ‘of droughts and flooding rains,’ predicting the weather means saving both lives and livelihoods.
The work of Indonesian and Australian scientists, which began with a visit to Jakarta in 1981 by climate scientist Professor Neville Nicholls, has given the countries the ability to forecast rain in the dry season, and during the lead up to the wet season. This means the fires, haze, and food shortages that often go hand in hand with droughts can be predicted—and planned for.
Seven days. Three months. We can now get accurate rainfall and temperature forecasts for these periods, but what if a farmer had access to quality outlooks that sat between the two—multi-week forecasts?
Multi-week forecasts would allow farmers to make better harvesting and sowing decisions before or after drought or flood events.
Imagine printing your own room lighting, lasers, or solar cells from inks you buy at the local newsagent. Jacek Jasieniak and colleagues at CSIRO, the University of Melbourne and the University of Padua in Italy, have developed liquid inks based on quantum dots that can be used to print such devices and in the first demonstration of their technology have produced tiny lasers. Quantum dots are made of semiconductor material grown as nanometre-sized crystals, around a millionth of a millimetre in diameter. The laser colour they produce can be selectively tuned by varying their size.
High tech cling wraps that ‘sieve out’ carbon dioxide from waste gases can help save the world, says Melbourne University chemical engineer, Colin Scholes who developed the technology. The membranes can be fitted to existing chimneys where they capture CO2 for removal and storage. Not only are the new membranes efficient, they are also relatively cheap to produce. They are already being tested on brown coal power stations in Victoria’s La Trobe Valley, Colin says. “We are hoping these membranes will cut emissions from power stations by up to 90 per cent.”
Climate change will impose a complex web of threats and interactions on the plants and animals living in the ice-free areas of Antarctica.
Increased temperatures may promote growth and reproduction, but may also contribute to drought and associated effects. These scenarios are explored in a new book, Trends in Antarctic Terrestrial and Limnetic Ecosystems: Antarctica as a Global Indicator, co-edited by Australian Antarctic Division biologist, Dr. Dana Bergstrom.
The extreme weather conditions that can turn an already dangerous bushfire into an explosive firestorm can now be better predicted, thanks to the work of a 30-year veteran of the Bureau of Meteorology.