WASHINGTON (AP) — The International Monetary Fund is projecting a modest rise in global economic growth for 2013, but also warning that problems in the eurozone and the United States could derail momentum.

The report Wednesday, an update of the fund’s World Economic Outlook, largely tracked the initial estimate from October, revising global growth down slightly by one-tenth of a percentage point, to 3.5 percent. The world economy grew 3.2 percent in 2012, according to IMF estimates.