Sizing Up the Sargassum Belt

Seaweed composing the Great Atlantic Sargassum Belt hit near-record levels in June 2026, with the Caribbean Sea and Gulf of America both reaching all-time highs.
Posted on July 29, 2026
Sign up for our newsletter:

Categories

1
3
67
202
16
2
361
21
6
1
6
1
3
1
13
38
1
2
11
11
159
5
278
1
47
10
62
14
17
14
1
10
Io
5
14
4
27
3
1
9
112
3
4
2
14
1
4
2
1
6
657
6
1
7
1
17
7
232
10
1
1
29
1
1
208
3
30
1
46
10
2
1
3
13
385
1
1
2
4
3
6
19
3
1

Blog Posts

Newsletter Archive