Earthquakes

Magnitude 5+ Earthquakes – Global

5.6 Earthquake his southern Sumatra, Indonesia.

5.0 Earthquake hits the Banda Sea.

Storms and Floods

Tropical Storms – Roundup of Tropical Storms:

Tropical cyclone 05s (Bohale), located approximately 594 nm south-southwest of Diego Garcia, is tracking south-southwestward at 06 knots.

Tropical depression 28w (Melor), located approximately 83 nm west of Yap, is tracking west-northwestward at 15 knots.

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Global Warming

Record Melt Occurring in Greenland Glaciers

Greenland’s glaciers are retreating under the influence of climate change at least twice as fast as any other time in the past 9,500 years, according to new research.

Scientists from Columbia University’s Earth Institute made the discovery after examining sediment cores from the bottom of a glacier-fed lake in southeastern Greenland.

They then compared the findings to analyses of similar cores from Iceland and Canada’s Baffin Island, and with recent satellite observations.

They found that before the 20th century, the fastest rate of glacier retreat occurred about 8,500 years ago, when the Earth’s position relative to the sun resulted in more summer sunlight warming the Arctic.

Despite less direct summer sunlight in recent years, Greenland’s glaciers have melted at an unprecedented rate because of warming brought on by higher greenhouse gas concentrations.

“If we compare the rate that these glaciers have retreated in the last hundred years to the rate that they retreated when they disappeared between 8,000 and 7,000 years ago, we see the rate of retreat in the last 100 years was about twice what it was under this naturally forced disappearance,” said study co-author William D’Andrea.

The study also provided new evidence for just how sensitive glaciers are to temperature, showing that they responded to past abrupt cooling and warming periods, some of which might have lasted only decades.

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Environment

Global Temperature Extremes

The week’s hottest temperature was 112.1 degrees Fahrenheit (44.5 degrees Celsius) at Moomba, South Australia.

The week’s coldest temperature was minus 57.5degrees Fahrenheit (minus 49.7 degrees Celsius) at Russia’s Siberian community of Verkhoyansk.

Temperatures were tabulated from the more than 10,000 worldwide synoptic weather stations. The United Nations World Meteorological Organization sets the standards for weather observations, and provides a global telecommunications circuit for data distribution.

Disease

Uganda: Cholera Outbreak

A cholera outbreak has been declared in Mbale after the district registered 12 suspected cases. The cholera victims are from slum areas of Mbale town including: Namatala, Kiteso, Malukhu and Namanyoyi, which exhibit poor hygiene and sanitation.

Mbale now join the districts of Tororo, Hoima, Kibaale, and Kampala that have confirmed cases of the deadly cholera disease. The outbreak come at a time when the country is experiencing heavy rains that have led to flooding.

Volcanos

Roundup of Global Volcanic Activity

Etna (Sicily, Italy): The volcano is at the moment calm. During Wednesday, the initially strong ash-venting activity from the NE crater decreased and stopped yesterday.

Earthquake activity at the NE side also progressively decreased.