The world experienced a series of record-breaking weather events in early 2007, from flooding in Asia to heatwaves in Europe and snowfall in South Africa, the United Nations weather agency said on Tuesday.
The World Meteorological Organization (WMO) said global land surface temperatures in January and April were likely the warmest since records began in 1880, at more than 1 degree Celsius higher than average for those months.
There have also been severe monsoon floods across South Asia, abnormally heavy rains in northern Europe, China, Sudan, Mozambique and Uruguay, extreme heatwaves in southeastern Europe and Russia, and unusual snowfall in South Africa and South America this year, the WMO said.
"The start of the year 2007 was a very active period in terms of extreme weather events," Omar Baddour of the agency's World Climate Program told journalists in Geneva.
While most scientists believe extreme weather events will be more frequent as heat-trapping carbon dioxide emissions cause global temperatures to rise, Baddour said it was impossible to say with certainty what the second half of 2007 will bring.
"It is very difficult to make projections for the rest of the year," he said.
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