Irene blobs started showing up after the hurricane/tropical storm hit the US East Coast late last month. One marine expert says the Irene blobs are a type of sponge.
This weekend, Hollywood star Matt Damon and Haitian-born singer Wyclef Jean urged people to help the UN raise more than $100 million for supplies.
Hammered by a series of storms, thousands of Haitians wait in shelters for help.
Government agencies and volunteer organizations are testing a new system to regroup and respond to multiple hurricanes.