The U.S. dollar halted its 4-day rally against the euro and fell today on the speculation that the European governments and the central banks will contain the spread of the debt crisis as the Group of Seven nations plans to discuss the fiscal troubles of Greece.

The euro extended its slump today for the fourth day as Jean-Claude Trichet, the President of the European Central Bank, announced that the buying of the government bonds wasn’t discussed at the ECB meeting today.

The Swiss franc performed the huge leap against the euro today and rose against the U.S. dollar on the speculation that the Swiss National Bank will stop to contain the currency’s appreciation.

The Polish zloty dropped today against the U.S. dollar to the lowest level since July 2009 on the speculation the fiscal crisis in the European Union may lead to slower global economic recovery, eroding appeal of the developing nation’s currencies.

The New Zealand dollar strengthened today after the jobless rate improved and Alan Bollard, governor of the Reserve Bank of New Zealand, suggested that the central bank may increase the interest rates as the economy become “less fragile”.

The Canadian dollar continues to weaken against its U.S. counterpart as the turmoil in Greece increased the global demand for the safety and pushed down the appeal of the currencies tied to growth for investors.

The euro continues its decline on the speculation that the Greece’s budget crisis is worsening and may begin spreading to other countries, as was signaled by the prospect for the decrease of the Portugal’s credit rating.

The U.S. dollar rose to the highest level since March 26th against its Canadian counterpart as the speculation that Greece won’t receive the bailout drove the global risk sentiment toward risk aversion and increased demand for safe currencies.

The Mexican peso tumbled today against the U.S. dollar as crude oil declined, dragging along with it the currencies tied to commodities, and with increasing global risk aversion sentiment.

The Canadian dollar dropped today against its U.S. counterpart to the lowest level in more than a month as the commodities and the global equities were affected by the concern about the European debt crisis.