Two swimmers look at the piles of sargassum along “Condo Row” close to Christiansted, St. Croix, last June. The Caribbean may see even more of the seaweed this year, according to a new report.

It was not to be. A “Sargassum Summit” to develop a multinational response to the worsening problem of the sargassum seaweed washing up on some of the best beaches in the Caribbean has had to be postponed.

The conference in Cancun, which has been delayed for domestic political reasons, is now expected to take place at a later date. Then Mexico’s Ministry of Foreign Affairs will bring together representatives from government, the private sector, and experts from the Caribbean, Central America and the U.S. to discuss how best to respond to the effect that the environmental phenomena is having on tourism and fisheries, and its damaging economic consequences.