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Low energy Iris which originated on March 24, 2018 is likely to hover around a low end Category 1 cyclone.  Iris will track south through the Coral Sea. The Vanuatu Meteorological Service says Tropical Cyclone Iris has moved away from Vanuatu.  The category one cyclone was moving west southwesterly at 53 kph and is now in the Coral Sea.  The potential for Tropical Cyclone Iris to further intensify and move back towards the Vanuatu group was low, according to the Vanuatu Met Service. 

Scientists have developed a new technique to examine the effects of chemicals on digestive systems of fish and support research into gut related conditions. It also has potential to reduce the number of animal experiments, in line with the principles of the 3Rs (Reduce, Refine and Replace).

Tropical Depression Jelawat, a newly-formed tropical cyclone over Western Micronesia is expected to strengthen into a Tropical Storm and enter the southeastern border of the Philippines by this afternoon (March 26).  However, this storm is too far away to actually affect any part of the country.

Catalytic converters for cleaning exhaust emissions are more efficient when they use nanoparticles with many edges. This is one of the findings of a study carried out at DESY’s X-ray source PETRA III. A team of scientists from the DESY NanoLab watched live as noxious carbon monoxide (CO) was converted into common carbon dioxide (CO2) on the surface of noble metal nanoparticles like those used in catalytic converters of cars. The scientists are presenting their findings in the journal Physical Review Letters. Their results suggest that having a large number of edges increases the efficiency of catalytic reactions, as the different facets of the nanoparticles are often covered by growing islands of a nano oxide, finally rendering these facets inactive. At the edges, the oxide islands cannot connect, leaving active sites for the catalytic reaction and an efficient oxygen supply.

A paper published this week in the journal Limnology and Oceanography Letters is the first to show that lake size and nutrients drive how much greenhouse gases are emitted globally from lakes into the atmosphere.