Forests are Expanding in the Northern Latitudes

According to a recent United Nations report, forested areas in Europe, North America, the Caucasus, and Central Asia have grown steadily over the past two decades. While tropical areas have steadily lost their forests to excessive logging and increased agriculture, northern areas have seen increases caused by conservation efforts. However, the long-term health and stability of northern forest lands may be imperiled by the effects of climate change.

The UN says that forests in these areas have grown by 25 million hectares in the last 20 years.

These forests play a great role in the world’s carbon cycle, acting as a repository for carbon dioxide, a primary greenhouse gas. Northern forests account for about 40 percent of the world’s forest according to the UNECE. They are generally classified as boreal or temperate. The 25 million hectares which these forests have increased is slightly larger than all of the United Kingdom, and accounts for 8 percent of all the forest in the region. Most of the increase has occurred on the Eurasian continent; North America accounts for only a fifth of the growth.

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Korean peninsula moved 5 cm according to GPS survey by KASI

The Korean Peninsula has moved a 5 centimetres to the east due to the massive quake that rocked Japan. The Korea Astronomy and Space Science Institute (KASI) said that based on detailed global positioning system (GPS) data, the peninsula moved between 1 cm to 5 cm depending on the location, with Ulleung Island and nearby Dokdo islets in the East Sea being most affected.

The south-western part of the country and Jeju Island off the peninsula’s southern coast moved far less.

Ulleung and Dokdo are the closest South Korean territories to the epicentre of the 9.0 magnitude tremor that devastated the north-eastern part of Honshu Island .

The epicentre was located 130 kilometres east of Sendai city under the Pacific Ocean.

The institute, said that the Japan moved roughly 2 meters to the east.

Source: The Hindu

Posted in earth, GPS, Japan Tsunami, News, seismic activities | 1 Comment

Good News:Japan sees some stabilization in nuclear crisis

One of Japan’s six tsunami-crippled nuclear reactors appeared to stabilize on Saturday but the country suffered another blow after discovering traces of radiation in food and water from near the stricken power plant.


Fire trucks sprayed water for nearly half a day on reactor No.3, the government said, cooling overheating nuclear fuel rods considered the most dangerous in the ravaged Fukushima Daiichi complex because of their use of highly toxic plutonium.

“The situation there is stabilizing somewhat,” Chief Cabinet Secretary Yukio Edano told a news conference.

But traces of radiation exceeding government limits were found in milk from a farm about 30 km (18 miles) from the plant in Fukushima prefecture and spinach grown in neighboring Ibaraki prefecture.

Tiny levels of radioactive iodine were also found in tap water in Tokyo, one of the world’s largest cities about 240 km (150 miles) south, where many tourists and expatriates have already left and where many residents are staying indoors.

Source

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Siting of Nuclear plants and seismic zones in India

Dear Readers

Found this article and a very good map here . I am reproducing it. Read it and Think.  I found it very relevent in the wake of recent happenings in Japan.

FoThe massive earthquake in Japan and the subsequent nuclear crisis has triggered fears of nuclear security across the world, including India.

Most of India falls in the moderate risk to very high risk seismic zones and so do a majority of India’s nuclear reactors. While there are no nuclear projects in Zone V (seismic intensity of 8 and above), the proposed Jaitapur Nuclear Power plant falls in Zone IV on the earthquake hazard zoning map. The map  plots India’s nuclear power plants on a seismic map.

 

Source:IBN Live

Posted in Alternative Energy, Countries, India, seismic activities | Leave a comment