Seaweed farmers can sell their crops to restaurants, markets, or processors for use in cosmetics, fertilizers, and animal feed. Prices for seaweed vary depending on the market demand and type of seaweed, but it is typically more profitable than traditional crops such as rice or wheat. Eutrophication due to human sewage rich in phosphate and nitrate from major municipalities and small towns has negative impacts on seaweed growth. Run-off from land-based agriculture, thermal power plants and chemical factories inundates near-shore waters and contributes to commercial cultivation challenges. Because seaweeds live in the ocean, surrounded by water, they don't need and have none of the structures that plants use to obtain water and nutrients from the soil. Seaweeds lack the vascular system and roots of a plant; they can absorb the water and nutrients they need directly from the ocean surrounding them. Seaweed cultivation is a very profitable and rapidly growing industry all over the world. Large-scale seaweed farms create some risks to the environment. Invasive species are a great problem for successful seaweed cultivation. Aquatic organisms are susceptible to risks created by large-scale seaweed cultivation. Expansion of seaweed cultivation grounds is a major constraint due to water use conflicts with fish landing centers and commercial fishing activities. Eutrophication due to human sewage rich in phosphate and nitrate from major municipalities and small towns has negative impacts on seaweed growth.

Climate change a major threat to the seaweed farming industry. Seaweed production has provided food security and opportunities for livelihood diversification to many coastal communities across the world. However, climate change poses a major threat to the global seaweed sector.Local communities, and especially seaweed farmers, many of whom are women, face a number of environmental, social and economic challenges. These include climate change, weak representation of women producers, difficulties in accessing international markets and insufficient protection of coastal ecosystems. Eutrophication due to human sewage rich in phosphate and nitrate from major municipalities and small towns has negative impacts on seaweed growth. Run-off from land-based agriculture, thermal power plants and chemical factories inundates near-shore waters and contributes to commercial cultivation challenges. Majority of seaweed farmers earn around `50,000 to 1, 00,000/- annually. The profit margin is 60%. Seaweed not just unsightly and stinky, but it can actually impact sea turtles. Little hatchlings have a hard time climbing over the seaweed. It can shade coral, which is not good, and even throw off the pH of the ocean, which can kill fish. Seaweeds do not have roots, stems, or leaves, or flowers. They have holdfasts, stipes, and blades, and sometimes floats. Seaweeds have different structures than land plants because they live in the water rather than on land. Unlike land plants, seaweeds do not have roots, stems, and leaves. This is because seaweeds do not have a vascular system that transports water and minerals around. Seaweeds are able to get their minerals directly from the water surrounding them. Seaweed farmers can sell their crops to restaurants, markets, or processors for use in cosmetics, fertilizers, and animal feed. Prices for seaweed vary depending on the market demand and type of seaweed, but it is typically more profitable than traditional crops. Based on the current selling price of $ 0.50 per kg of dried seaweed, if you are engaged in a 320 line farm, you can expect to earn about $ 60.00 per week. If you have a bigger farm, let's say 480 line farms, you can earn up to $ 90.00 per week. This means $ 15.00 to $ 22.50 per each of the four working days.