Thursday, 31 January 2013

60th Anniversary of Great Flood

Today is the anniversay of the great 1953 storm that killed over 300 people. The south east of the UK was hit by a wall of water caused by storm surges and spring tides. Unfortunately 60 years ago there was little warning and many perished. Today many lessons have been learnt from this storm; defences have been introduced along much of the coast and teh Environemnt Agency and Met Office coordinate their warnings and responses. However, some scientists are warning that without further investment, our coasts might be vulnearble again because of rising sea levels and stronger storms.

A policeman and rescue worker rowing a flood victim from her home at Canvey Island, Essex

http://www.bbc.co.uk/news/science-environment-21258341

http://www.bbc.co.uk/news/uk-21272289

Sunday, 27 January 2013

Flood Warnings as Snow Thaws

Forecasters have warned that there might be localised flooding as warming temperatures thaw snow and rain moves in. Snow has covered much of the UK for over 10 days creating temporary surface stores. The melting snow will be unable to infiltrate as much of the UK is already saturated from a wet 2012. With no where to go the snow will run down hill to low lying areas and river valleys.

A34 at Meaford 

http://www.bbc.co.uk/news/uk-21217480

Wednesday, 23 January 2013

Andes Glaciers Melting Fast

A recent survey has found that Andean glaciers have shrunk by an average of 30-50% since the 1970's. The glaciers that provide water for millions of people living in South America are melting at their quickest rate in over 300 years. The IPCC say that glaciers are a key indication of climate change.
Peru glacier
 



Friday, 18 January 2013

Snow Causes Problems Across the UK

Much of the UK is experiencing disruption today as up to 30cm of snow is dumped across the country. It is believed that South Wales will be hardest hit where schools and roads have already been included. Areas in South wales have a severe snow warning in place. Much of the snow could stay in place for days with tempertures forecasted to stay below freezing into next week. When the snow melts the temporary surface store could potentially cause localised flooding because much of the UK remains saturated from the second wettest year on record.

Snow in Bristol
 
http://www.bbc.co.uk/news/uk-21071608

East Midlands Experiences An Earthquake

The British Geological Survey has confirmed that there was a 2.9 magnitude (Richter Scale) earthquake near Loughborough at 5.20am on the 18th January. The earthquake was 18km deep. Scientists have said that it was 1 million times weaker than the 9.0 that his Japan in March 2011.

Earthquake location
 

Wednesday, 16 January 2013

Soot plays big role in climate change

Scientists believe that soot (black carbon) is having twice as much of a warming affect than first thought. This would rank it second only behind carbon dioxide and ahead of methane. The particles can be released from burning wood and from diesel engines. The amount of black carbon being released is increasing in many developing countries, but is also significant in many developed countries like the US and Canada. However, many scientists argue that the contribution of black carbon is complicated, because it can also cause cooling

wood fire

http://www.bbc.co.uk/news/science-environment-21033078

Monday, 14 January 2013

UK has huge tidal potential

Experts have estimated that up to 20% of the UK's energy needs could be provided by tidal power. Despite extremely high start up costs, tidal power is more reliable than alternatives like wind and solar. Two methods can be used, one involves building barrages across tidal estuaries, what such project is proposed on teh Severn Estuary. The involves planting turbines underwater in fast moving tidal streams. Areas around Cornwall and Scotland would be suitable for this.

Scotland turbine

http://www.bbc.co.uk/news/science-environment-20983645

Thursday, 10 January 2013

Half of all Food Wasted

About half of the world's food (about 2 billion tonnes) is estimated to be wasted each year according to a UK based report. Food is believed to be wasted because over cautious sell by dates, fussy consumers and bulk offers. In the UK it was also claimed that up to 30% of vegetable were not harvested because of their physical appearence. The wasted food also means that other resources like energy and water are also being wasted in their production. The report calculated that about 550 billion cubic metres of water was wasted annually.
Wasted food in a bin
 
http://www.bbc.co.uk/news/uk-20968076

Sunday, 6 January 2013

The Entire UK is Saturated

The past 12 months was the second wettest ever in the UK. There was 1,330.7mm, just 6.6mm short of the record set in 2000. The large levels of rainfall has meant that the UK has recovered from a widespread soil deficit in March to e fully saturated in December.
Graphic showing the soil moisture deficit (SMD) across the UK in March and December 2012

http://www.bbc.co.uk/news/science-environment-20898729

Tuesday, 1 January 2013

Hundreds Evacuated From Erupting Volcano

The Nicaraguan authorities have advised hundreds of people living near the San Cristobal Volcano to evacuate their homes. Nicaragua is located in Central America and is on the so called 'Ring of Fire' making it an extremely tectonically active country. The volcano started erupting ash over Christmas causing the evacuation alert. However, man farmers are refusing to leave the fertile soil around the volcano.
San Cristobal volcano - 26 December 

http://www.bbc.co.uk/news/world-latin-america-20848465