So we have 10 ways to reduce the plastic pollution.

1. Wean yourself off single-use plastics.

2. Stop buying bottled water.

3. Boycott microbeads.

4. Cook more.

5. Purchase items secondhand.

6. Recycle.

7. Support a bag tax or ban.

8. Buy in bulk and look for eco-friendly packaging.

9. Choose clothing made from natural fibers.

10. Put pressure on manufacturers.

PNUMA ( Programa das Nações Unidas para o Meio Ambiente)

IDRA ( International Desalination and Reuse Association)

The process of removing salts anfd others minerals from water, primarily to make seawater or brackish water suitable for human consumption, irrigsation or industrial uses. To do the desalination you can use the thermal distillation method which consists in heat the water so the salt will evaporate and after that the vapor condenses into pure fresh water. So, no, the desalination is not good for the environment because it has significant impacts, primarily from its high energy consuption and it will have a big impact in the athmosphere because of the CO2 consumption. It also ruins the inner world in the ocean and his biosphere.

Key Points

• What overtourism means

Overtourism happens when places become overwhelmed by tourists to the point where daily life for residents is disrupted and the natural or cultural environment suffers. It’s not only about crowding—it's about exceeding what the destination can support.

• Environmental consequences

Tourist traffic and irresponsible behavior can damage fragile natural sites like coral reefs, beaches, and protected landscapes. Increased flights, cruises, and transport also add to global carbon emissions. Wildlife and ecosystems often deteriorate under this pressure.

• Social and economic impacts

Local communities feel the effects through rising housing costs, as properties are converted into short-term rentals. This leads to displacement of residents and changes the character of neighborhoods. Everyday life becomes more expensive and less comfortable for locals due to congestion, noise, and overcrowded public spaces.

• Decline in tourist experience

Paradoxically, the very tourists who come seeking beauty and culture end up experiencing long lines, noisy streets, and packed attractions, reducing the quality of their visit.

• Real-world examples

Places like Hallstatt (Austria) have seen enormous crowds despite being tiny towns. Venice has had to restrict cruise ships to protect its historic center. In Orkney (Scotland), locals are protesting the rising number of cruise passengers arriving each day.

• Measures and solutions

Cities are adopting different strategies, such as tourist taxes, limiting the number of daily visitors, creating ticketing systems for popular sites, and enforcing environmental rules. Some destinations promote travel during the off-season or encourage tourists to explore less-visited areas.

• Looking ahead

Tourism continues to grow globally, and numbers are expected to surpass pre-pandemic levels. Experts emphasize that there is no universal solution—each destination must develop its own approach together with the local community. The aim is to balance economic benefits with long-term sustainability.

In conclusion these are sustainable sports beacause it desn't requie any type of engine that is powered by any type of fuel

As the global population is seeking a better quality and longer life, the significance of health and well being emerges as a paramount societal concern. Maritime resourses have a lot of benefits about the skin, hair and health. That is because they are natural and contribute to environmental sustainability.

Tests revealed that the new material is non-toxic and non-flammable. Like other plastics, its shape can be molded at high temperatures. After dissolving it in salt water, the scientists were able to recover 91% and 82% of the two original building blocks, showing that it is easy to recycle.

Analyze what factors influence investment decisions—and how they do so—when there are principal-agent problems in the shipowner–charterer relationship.

The results corroborate the hypotheses and indicate that principal-agent problems and split incentives, especially in time charter contracts, and a lack of verified information make the shipowners less likely to invest. Moreover, energy efficiency measures are less likely to be implemented in older vessels, possibly due to the difficulty associated with recovering the investment.

Less production = less waste, less pollution, fewer microplastics.

The effects are immediate: fewer single-use items, more reuse, better recycling. And replacing?

It can help, but it is not a full solution. Many “bioplastics” do not degrade in the ocean and can still cause pollution. Replacing without reducing just swaps one problem for another.

Conclusion. The most effective solution is to reduce plastic use as much as possible, and only replace plastic when the alternatives are truly sustainable.

The list of the not sustainable sports have sports like jet skiing, yachting wakeboarding, kneeboarding, water skiing.

In conclusion the sustainable sports doesn't require any type of engine that is powered by any type of fuel and the not sustainable use engines or some type of motor.

The ocean plays a critical role in climate change by acting as a buffer.

It plays a main role in:

• Heat absorption: The ocean absorbs excess heat caused by global warming, and slows down the increase of atmospheric temperature

• Carbon absorption: It absorbs about 23-30% of human-caused carbon dioxide emissions. The ocean plays an importante role in preventing the carbon from accumulating in the atmosphere.

• Climate regulation: Ocean currents help to spread and redistribute heat around the globe, through this they regulate global temperatures and weather patterns.

• Oxygen production: Marine plants and algae produce about half of the Earth's oxygen. 

But there are consequences:

• The absorption of excess heat is causing the ocean's temperature to rise, leading to impacts like sea level rise due to thermal expansion.

• As the ocean absorbs more

  CO2, it becomes more acidic. This harms marine life with calcium carbonate shells and skeletons, such as corals and shellfish.

• Warmer water holds less dissolved oxygen, which is creating low-oxygen "dead zones" that are harmful to marine ecosystems.

• Warmer ocean temperatures can intensify storms and increase rainfall. 

In conclusion:

• The ocean plays a very importante role in regulating temperatures, but the ocean's capacity to buffer the effects of climate change is not limitless.

• The oceans will eventually become overwhelmed, and the impacts will be felt more severely on land if the greenhouse gas emissions continue to rise.

  Mesures to take:

  To mitigate the worst impacts of climate change on the ocean and the planet, it is crucial to significantly reduce greenhouse gas emissions and factory emissions.

• Ecteinascidin;

• Discodermalide;

• Bryostatin;

• Pseudopterosins;

• w-conotoxin MVIIA.

  We believe that it is a risk that should be taken. The medical benefits of marine biodiversity are already proven and have much yet to develope. Several compounds are proven to have antibacterial effect which is of great importance, since bacterial infections are a leading cause of death in the underdeveloped countries. Moreover, marine bioactives have demonstrated the qualities of anticancer compounds. The ocean´s biodiversity has given us hopes for possibly finding a drug to deal with human immunodeficiency virus (HIV). To summarise, marine species have been proven to have antioxidant, antimicrobial, anticancer, anti-inflammatory, antidiabetic, anti-obesity and sleep-enhancing properties. 

  Still there is a negative side which should not be overlooked. Harvesting marine resources can have a bad impact on the environment if it isn´t done in a sustainable way. One must be careful of exploiting the ocean´s biodiversity, which is always a problem for humanity, as experience has already shown us. Moreover, the production of organisms is dependant on the environment so it can not be relied on.

   Although we looked at both sides of the problem, we still believe that marine resources could be a key to a big health revolution and should be explored. Even though there might be bad consequences for the nature, it is not morally right to ignore the opportunity to cure such serious sicknesses. The potential to save countless human lives, now and in the future, must be taken into consideration.