/ 13 January 2012

Topsy turvy weather chaos storms into 2012

The year 2012 has begun where 2011 left off with weird weather in Europe and the Americas, Arctic ice almost at its lowest extent ever recorded in midwinter, disastrous droughts and searing heat in Africa and Latin America, and one of the world’s biggest insurance companies warning that climate change will increase damages.

Thousands of people in Austria, France and Germany were on Thursday still digging themselves out of some of the heaviest snowfalls seen in 30 to 50 years. After Europe’s driest and warmest autumn for nearly 150 years, a massive storm dumped nearly 216 inches of snow in two days this week, cutting off ski resorts and villages and leaving people and animals stranded.

The summit of the 9 718ft Zugspitze mountain in Germany which had only 7.5 inches of snow a few weeks ago, now has 150 inches.

However, Arctic sea ice has not fully reformed after last year’s massive melt when it reached its second lowest extent ever recorded. It is now at its third lowest December extent recorded since records began 30 years ago, averaging 12.38-million square kilometres.

More worryingly from a climate perspective, is data that shows its volume is now at it lowest ever recorded level at the start of a year. According to the US government-funded Polar Science Centre at the University of Washington, the volume on December 31 was around 12 230 km3 — a massive 47% lower than the maximum in 1979 and 37% below the mean as depicted on this chart.

Meanwhile, South Australia has been hit by its hottest start to the year in a century, with temperatures over 40°C, and Argentina, he world’s second-biggest maize exporter, is suffering a drought and heat wave which has severely hit crops.

Munich Re, one of the world’s largest reinsurance companies, now estimates that losses from natural disasters totalled $380-billion in 2011, nearly twice as much as the previous record set in 2005. Many of the extreme events are put down to a continuing La Niña event which sees lower than normal sea temperatures in the Pacific and frequently heralds droughts sometimes lasting several years. This is now believed to have peaked, a sign that 2012 could eventually see a return to less extreme weather.

According to the Climate Prediction Centre, new sea-temperature data suggests La Niña “will be of weak-to-moderate strength this winter and will continue thereafter as a weak event until it likely dissipates sometime between March and May.” —