General Awareness

ENVIRONMENT - November 2014

Nov 2014

Sep 02, 2015

Ancient Life Found in Earth's Mantle Rocks

Scientists have discovered evidence of ancient life in Earth's mantle rocks deep below the seafloor, confirming a long-standing hypothesis that interactions between mantle rocks and seawater can create potential for life even in hard rocks.
The fossilised microbes are likely the same as those found at the active “Lost City” hydrothermal field, providing potentially important clues about the conditions that support extraterrestrial life in rocks below the seafloor.
According to Klein, confirmation that life is possible in mantle rocks deep below the seafloor may have important implications for understanding sub-seafloor life across a wide range of geologic environments on planetary bodies.

Aug 31, 2015

Mount McKinley Renamed

Mount McKinley, the tallest mountain of North America is officially being renamed Denali.
The mountain had been named in 1896 after US President, William McKinley, but local authorities had worked on the change for years, restoring an Alaska Native name with deep cultural significance.
Finalizing a process initiated by the State of Alaska in 1975, President Obama announced that the Secretary of the Interior Sally Jewell used her authority to rename the mountain as Denali.
The mountain rises about 20,000 feet (6,000 metres) above sea level.

Aug 29, 2015

The Hidden Meltdown of Greenland

NASA-supported researchers have found that ice covering Greenland is melting faster than previously thought.
All by itself, Greenland could bump sea levels by 7 meters (23 feet) if its ice melted completely.

Aug 28, 2015

Seas Rising More than Predicted

According to NASA scientists, sea levels worldwide are rising faster than predicted as a result of climate change.
According to the latest satellite measurements from NASA and its partners, seas around the world have risen an average of nearly 3 inches since 1992, with some locations rising more than 9 inches due to natural variation.
In 2013, the United Nations Intergovernmental Panel on Climate Change (IPCC) issued an assessment based on a consensus of international researchers that stated global sea levels would likely rise from 1 to 3 feet by the end of the century.
Data from NASA reveal that ice sheets in Greenland and Antarctica are melting faster than ever, and oceans are warming and expanding much more rapidly than they have in years past.

Aug 27, 2015

World's Largest Extinction Events Triggered by Metal Pollution

New research suggests, metal poisoning caused the malformation observed in fossil remains of marine plankton from the late Silurian (415 million years ago) and may have contributed to their extinction and that of many other species.
Several Palaeozoic mass extinction events during the Ordovician and Silurian periods shaped the evolution of life on our planet.
As per researchers, the malformed fossil remains of marine plankton from the late Silurian contain highly elevated concentrations of heavy metals, such as iron, lead, and arsenic.

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