So much rain fell on Australia during 2010-11 that global sea levels dropped, rather than normally rising. Australia has large basins from which rainwater doesn't drain (well). Australia is giving it back as evaporation and sea levels are on the rise again thanks. The record breaking rainfall was attributed to global warming.
The last decade (2001-2010) was the warmest on record. According to The UN World Metereological Organisation's report, the average land and ocean-surface temperature for 2001-2010 was estimated to be 14.47°C, or 0.47°C above the 1961-1990 global average and +0.21°C above the 1991-2000 global average (with a factor of uncertainty of ± 0.1°C).
"By century's end, rising sea levels will turn the nation's urban fantasyland into an American Atlantis. But long before the city is completely underwater, chaos will begin (1Page) [more inside]
...and the news ain't good: "Evidence for climate change abounds, from the top of the atmosphere to the depths of the oceans. This evidence has been compiled by scientists and engineers from around the world, using satellites, weather balloons, thermometers, buoys, and other observing systems. The sum total of this evidence tells an unambiguous story: the planet is warming." Overview letter is here, Executive Summary is here, and the full download is here. [WARNING: Full download runs to 147MB).
HighWater Line is a public art installation in New York City that will be a 70-mile chalk line marking the boundary of a 10-foot sea level rise. More pictures under Timeline.