Asian shares and commodities fell Thursday on growing worries that Europe's intractable debt problems will plunge the world into a second global financial crisis.

Copper fell 3 percent, gold slipped toward $1,600 an ounce to stand more than $300 below its record high earlier this month, and commodities-related stocks such as global miner Rio Tinto were dumped on worries that demand will weaken as the international economy slows.

The past week has seen a broad selloff of commodities, equities and emerging markets bonds and a rally in the dollar that has been reminiscent of the rout surrounding the collapse of Lehman Brothers investment bank three years ago.

It seems periods of optimism are getting shorter and the pessimism is getting longer, said David Land, analyst at CMC Markets in Sydney.

This is being driven by the clear realization that while there are many plans as to how to deal with the Euro situation, the reality of getting agreement will be that much harder.

Tokyo's Nikkei share average fell 1 percent, while MSCI's broadest index of Asia Pacific shares outside Japan dropped 0.8 percent, with its materials sub-index shedding more than 2 percent.

S&P 500 index futures were mildly negative, after Wall Street's broad benchmark dropped 2.1 percent on Wednesday.

The market situation is still tough, with worries about global growth, said Fujio Ando, senior managing director at Chibagin Asset Management in Tokyo.

GERMAN VOTE

The latest source of nervousness was a vote in Germany's parliament set for 0900 GMT Thursday on new powers for the euro zone's 440 billion euro ($598 billion) rescue fund.

While opposition votes will ensure the bill passes, a big rebellion within Chancellor Angela Merkel's own center-right coalition could weaken her politically and cloud future policymaking at a time when financial markets and other nations are urging euro zone leaders to act boldly and decisively.

The euro was a little firmer around $1.3555, while the dollar rose 0.2 percent against a basket of currencies.

You would suspect weakness until Germany votes, given that it is the big guy that has to fund it, said Gavin Stacey, head of Australia and New Zealand research at Barclays Capital.

The euro is most likely to continue its trend deterioration until it gets really bad, forcing a resolution to come.

Commodities continued to slide, with copper, which is highly sensitive to expectations for global growth, falling 3 percent to $7,036.75 a ton.

U.S. crude oil futures fell 0.6 percent to $80.70 a barrel and Brent crude lost 0.4 percent to $103.37.

Gold, which has seen a shift from a negative to a positive correlation with riskier assets over the past week or so as investors seeking safety have turned their back on it in favor of the dollar and U.S. Treasuries, fell 0.2 percent to around $1,605 an ounce.

Japanese government bonds were in demand for their safe haven appeal, with the benchmark 10-year yield falling 1 basis point to 0.995 percent following similar moves in Treasuries, where the 10-year yield dipped back below 2 percent on Wednesday.

(Additional reporting by Miranda Maxwell in Melbourne and Lisa Twaronite in Tokyo; Editing by Kim Coghill)