What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
The “brown belt” between Africa and the Americas is the Great Atlantic Sargassum Belt (GASB), a recurring aggregation of floating brown algae in the tropical Atlantic. Satellite observations have tracked it since 2011. It can span a vast area, but it is not a solid, continent-sized sheet: it consists of scattered patches and rafts. The real warning is that abundance varies sharply, and when mats wash ashore, they can damage coastal ecosystems, disrupt infrastructure and tourism, and release irritating gases as they decay.
What is the Great Atlantic Sargassum Belt?
Sargassum is a brown algae, often called seaweed. The GASB is a recurrent concentration of this floating algae across the tropical Atlantic, with satellite-observed extent from waters off West Africa toward the Caribbean and Gulf of Mexico. NOAA notes that individual patches can range from a few centimeters to hundreds of meters across: “belt” describes a broad pattern of abundance, not an unbroken carpet covering the ocean. NOAA’s Sargassum FAQ and NASA’s satellite overview explain the distinction.
That distinction matters for wildlife and for interpreting satellite maps. A map highlights areas with more Sargassum at the time of observation; it does not mean every point inside the mapped region is covered. Offshore, floating mats can provide valuable habitat. Near shore, excessive accumulations can have harmful local effects.
How large was it in 2026?
NASA Earth Observatory’s July 29, 2026 account, based on June observations, said that 2026 was the second-highest year in the satellite record at that point, slightly behind 2025. That is a midyear assessment, not a final ranking for the whole of 2026. NASA’s account of estimates by University of South Florida scientists reported record-high amounts in each of three regions for June:
Quick wins for a faster PC:
Clear out junk files and repair common Windows errorsFree Scan →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →#1 Best Overall
- MyLifeUNIT Aquarium Seaweed Plastic Plant, made of eco-free non-toxic material PVC , ceramic base, won't contaminate water, color won't fade
- Soft won't scratch fishes, plants will swing with the water which looks real
- Note: Plastic water plants may get squeezed and deformed during packaging, put into 104 - 140 Fahrenheit degree warm water get restored
- Size: Artificial aquarium plants measures 1.4''L x 1''W x 12''H, suitable for larger aquariums such as 30-gallon, 40-gallon, 50-gallon, or even larger fish tanks. Main Color: Green
- NOTE: To ensure aquatic plants stand upright in the aquarium, please maintain a water level above 14 inches and bury the base in gravel. Avoid placing plants near the aquarium's air outlet.
| Region | Estimated Sargassum in June 2026 |
|---|---|
| Western Caribbean | 3.6 million metric tons |
| Eastern Caribbean | 9 million metric tons |
| Gulf of Mexico | 5 million metric tons; nearly twice the region’s previous record, also set in 2025 |
These are regional estimates for June 2026, as reported by NASA; they should not be added together or presented as a single global belt total. NASA explains that satellites detect reflected sunlight, including a near-infrared signal, to identify Sargassum and estimate its density. The June map averages observations for each pixel over that month, so it represents a monthly view rather than a direct count of every floating mat. See NASA Earth Observatory’s June 2026 report.
A frequently quoted larger figure is historical, not a measurement of current conditions. A 2019 paper by Wang and colleagues estimated that the belt in June 2018 stretched 8,850 kilometers and contained more than 20 million metric tons of biomass. The figure describes that period and should not be confused with the June 2026 regional estimates. The paper, published in Science in 2019, provides that historical estimate.
Rank #2
- Decorated fish tank with green artificial plants to brighten your aquarium landscape
- Soft leaves allow your fish to shuttle and hide in the water plants, which won't hurt your fish or other pets
- Each plant has a thick base, which is stable and can prevent plants from floating in the water
- 11.75Inches in height, fit for 20 gallon and up aquarium nicely
- Package includes: 10pcs artificial plants
Why did the belt expand, and what makes it grow?
No single cause is established by the sources cited here. Researchers describe interacting influences: a source population in the Atlantic, nutrient availability, temperature and salinity, and winds and ocean circulation. The U.S. Environmental Protection Agency lists potential nutrient inputs from rivers such as the Congo, Amazon and Mississippi; African and equatorial upwelling; vertical mixing; Saharan dust; biomass burning in central and southern Africa; and runoff from urbanized coasts. Its assessment says the belt does not appear to be fueled by just one nutrient source. EPA’s Sargassum overview summarizes these interacting drivers.
Ocean circulation is especially important to where Sargassum gathers and travels. Wang and colleagues’ 2019 study concluded that “the spatial distribution of the GASB is mostly driven by ocean circulation.” The authors proposed that the 2011 bloom may have followed Amazon River discharge in earlier years, while subsequent year-to-year increases appeared linked to West African upwelling in boreal winter and Amazon discharge in spring and summer. These are proposed influences, not proof of a single trigger or a settled explanation for every year.
Recommended Free Tools
Rank #3
- Highly Simulated & Safe:Our fish tank decor can accurately restore the natural environment, and the appearance is so realistic that it is difficult to tell that they are made of plastic; the leaves of beta fish tank decor are soft and have no edges and corners, will not scratch the fish.Aquarium plants plastic realistic are made of healthy materials, are harmless to water bodies and fish and shrimps, do not affect the pH value of the fish tank, and allow fish to move around and hide safely
- Fun DIY Set:Includes 10 tall green fake seaweed, 10 purple fake aquarium plants, and 10 plastic sinkers. You can assemble the sinkers yourself. Typically, 2 fish tank plants are paired with one sinker, but you can customize the combination to your needs. Then, place aquarium decorations in your aquarium and secure the roots with sand or rocks. Create a beautiful underwater garden in just a few steps
- Easy to Care:Compared to real aquatic plants, these plastic fish decorations for tank aren't restricted by light, water quality, or carbon dioxide levels, requiring minimal care, saving you significant time. Betta fish tank decorations won't wither or shed leaves, detracting from the aesthetics of your aquarium. Fish tank accessories can stay fresh and green, making tank maintenance a breeze. Highly compatible, suitable for both freshwater and saltwater aquariums, no adjustments are required based on water quality
- Cleaning & Restoration Tips:When using aquarium plants for the first time or when transferring them from the aquarium to a clean container, rinse small aquarium decor with clean water to remove any dust or impurities. Then soak aquarium plant in warm water for 30-60 minutes before adding them to the aquarium. Do not use soap or detergents for cleaning. Due to the vacuum technology used, plastic aquatic plants may be squeezed and deformed during packaging. They should be restored by placing them in warm water between 104 and 140 degrees Fahrenheit
- High Aquatic Flexibility:The soft aquarium decoration sway with the water, creating a realistic and beautiful look. These ten aquarium plants, available in two color combinations, are perfect for aquarium and fish tank decorations, meeting your aquatic needs. You can create their own personalized underwater landscapes with our aquarium ornaments, providing ample space for their fish to roam
NOAA’s 2023 FAQ also records hypotheses about the original 2011 expansion, including an unusual wind shift in winter 2009–2010 and combinations of river outflow, ocean nutrients, dust, temperature and runoff. NOAA said researchers were still assessing those explanations. NOAA’s FAQ sets out that uncertainty.
Why can Sargassum be both useful and harmful?
Offshore mats provide habitat
In moderate amounts offshore, floating Sargassum offers food and shelter for turtles, invertebrates, fish and birds. Its photosynthesis also adds oxygen to the water. The belt is therefore not harmful everywhere it appears: location, quantity and what happens to the mats determine their effects. NASA describes both the habitat value offshore and the risks when excessive amounts move toward shore in its June 2026 report.
Rank #4
- Decorated fish tank with green artificial plants to brighten your aquarium landscape
- Soft leaves allow your fish to shuttle and hide in the water plants, which won't hurt your fish or other pets
- Each plant has a thick base, which is stable and can prevent plants from floating in the water
- Easy to clean: just rinse it when dirty. Tips: soak in warm water for 10-15 minutes before first use
- Package includes: 10pcs artificial plants
Nearshore accumulations can harm ecosystems and communities
Large mats close to shore can tangle or suffocate marine life. When they sink, accumulations can smother coral and seagrass. On beaches, decaying Sargassum releases hydrogen sulfide, a gas with a rotten-egg odor that can irritate the respiratory system. NOAA also warns that Sargassum can contain arsenic, other heavy metals, organic contaminants and marine debris; that warning does not mean every batch has the same contamination or that the entire belt is uniformly toxic.
Beachings can affect coastal ecosystems, tourism and public health. Accumulations can also clog water-intake pipes, including those used by desalination plants. NOAA says cleanup options are limited and costly. For information about impacts and response, see NOAA’s coastal Sargassum facts.
Crashes, No Sound, or Screen Glitches?
Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minutePC Slower Than It Used to Be?
A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11Best Value
- 【Fish Tank Plant Decoration】Aquatic plants decoration of two different forms to meet your needs. Lifelike water plants decorations let you feel the feeling of flowing water plants.The two types of artificial aquarium plants tall have different shapes and can add unique color and interest to your aquarium
- 【High-quality Materials】The tall plants fish tank decor is made of high-quality materials,tall fish tank decorations plants is safe and durable,and has a realistic appearance.Fish tank decor plants won't fade or pollute the water quality,large aquarium plastic plant can provide a natural environment for the fish tank
- 【Easy to Clean and Install】Remove the artificial plants from the aquarium,rinse them with water and air dry, you can continue to use them and artificial fish tank plants tall looks as good as new. (Please do not use soap or detergent when cleaning)
- 【Product Features】Green and natural aquarium artificial plants decorate the fish tank,plastic aquarium water plants tall not only make your fish tank landscape more vivid, but also add natural vitality to your fish.Your little fish can hide,rest and play among the aquarium decorative plants
- 【Product Size】 2pcs extra large plastic aquarium plants measure: 21.7 inches,plastic fish tank decoration plants tall are suitable for any large fish tank.Realistic aquarium plant decorations,let your fish experience the real underwater world
What does “serious red flag” mean?
It is a warning about recurring abundance and the possibility of major local impacts, not a scientific classification or a claim that every part of the Atlantic belt is dangerous. Satellite monitoring helps show the basin-scale pattern while coastal effects vary from place to place. Brian Barnes, a marine scientist at the University of South Florida’s Optical Oceanography Laboratory, told NASA: “The belt is a basin-scale phenomenon that can have devastating local-scale impacts throughout the Caribbean and Gulf, and satellite observations are the only method that captures both scales on a daily basis.” NASA published the quotation in its July 29, 2026 account.
Can it be harvested or cleared safely?
Harvesting is not automatically harmless. NOAA says federal agencies that authorize, fund or carry out harvesting that may affect species listed under the Endangered Species Act must consult under Section 7. It also encourages private entities to consider potential interactions with listed species and to seek an Incidental Take Permit under Section 10 if impacts cannot be avoided. Requirements depend on the proposed action and affected species; consult current agency guidance and local rules before planning removal. NOAA’s guidance is available in its coastal Sargassum facts.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
