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Climate change

Cyclone Phailin and climate change

Issue Date: Oct 12, 2013
The severity of cyclone Phailin has once again triggered speculations about whether it is linked to climate change. But the impact of climate change on intensity and frequency of cyclones is not understood well and so far not been proved conclusively. See also:  MAP: Wind and Cyclone Hazard Map  

‘Scale of disaster would depend on where Phailin hits’

Issue Date: Oct 11, 2013
Tropical cyclones are among the most destructive natural disasters of the world. About seven per cent of the global tropical cyclones take form in the north parts of the Indian Ocean. Cyclone Phailin, now declared a super cyclone of size matching Hurricane Katrina, may prove to be as devastating as the 1999 super cyclone of Odisha in which thousands lost their lives.

Science and Technology - Briefs

Issue Date: Oct 15, 2013

Calming influence

Author(s): Indu Mathi S
Issue Date: Oct 15, 2013

Sea of change

Issue Date: Oct 15, 2013
CLIMATE change and the resultant rise in ocean temperatures is likely to upset natural cycles of processing carbon dioxide (CO2), nitrogen and phosphorous in planktons (microscopic aquatic plants), suggests a study published in Nature Climate Change.

Cool bug

Author(s): Tiasa Adhya
Issue Date: Sep 30, 2013
CATTLE farming for meat and milk is one of the biggest sources of man-made greenhouse emissions. Methane produced by cattle gets released into the atmosphere. However, amount of methane loaded into the atmosphere from dung could have been much higher but for the humble dung beetles, which are declining in numbers across the globe.

Rain imbalance

Issue Date: Sep 30, 2013
Why did you carry out this study?

Science and Technology - Briefs

Issue Date: Sep 30, 2013
TECHNOLOGY Water forecast We rely on weather forecasts to know how hot or cold next few days would be. A new forecast system can now predict changes in ocean ecosystem, too, months in advance. Known as J-SCOPE, it works by feeding data from global climate models into a coastal ocean and oxygen model that helps predict oxygen levels and other ocean water properties.

The gas game

Issue Date: Sep 30, 2013
In the mid 1980s, the British Antarctic Survey team discovered a hole in the ozone layer. The depletion had started in the 1970s. There were reports of ozone hole over the North Pole as well. The hole meant we were exposed to harmful UV rays with severe health impacts such as malignant and non-malignant skin cancers.

Flow fact

Author(s): Manupriya
Issue Date: Sep 15, 2013
HIMALAYAN glaciers are the sustaining force for major river basins in northern India. Important rivers like the Ganga, Brahmaputra and the Indus depend on water released from these glaciers for their flow.
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