Leaders of the US, Mexico and Canada say they'll fight the spread of the A-H1N1 flu and combat climate change, but differ on trade disputes. The summit just wrapped up in Guadala-jara, Mexico.

On top the two-day agenda were the A/H1N1 flu, climate change, and trade.

The leaders of the three North American countries agreed to share information in the face of the possibility of a predicted upsurge in the A/H1N1 virus.

Felipe Carlderon, Mexican President, said, "The A-H1N1, we know will return in the winter. We are preparing our three countries to face responsibly this contingency and minimize its impact on our people."

The three leaders issued a statement on joint efforts to combat climate change.

They agreed to make progress on green energy, push for a green fund to reward nations that cut carbon emissions, and to work together to achieve a climate change agreement in Copenhagen.

They also agreed to "aggressive, coordinated action" to restore growth across North America.

But disputes remain. Canada fears the "Buy American" provisions in the multi-billion US economic stimulus plan could shut out Canadian companies.

The US argues the provisions have in no way endangered trade with Canada.

The summit also touched on other issues, such as joint efforts to take on drug cartels and the political crisis in Honduras.