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Mangroves help protect coastal areas against sea level rise

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Mangrove forests could play a crucial role in protecting coastal areas from sea level rise caused by climate change, according to new research involving the University of Southampton.

A joint study between researchers at the University of Southampton along with colleagues from the Universities of Auckland and Waikato in New Zealand used leading-edge mathematical simulations to study how mangrove forests respond to elevated sea levels.

Taking New Zealand mangrove data as the basis of a new modelling system, the team were able to predict what will happen to different types of estuaries and river deltas when sea levels rise.

They found areas without mangroves are likely to widen from erosion and more water will encroach inwards, whereas mangrove regions prevent this effect – which is likely due to soil building up around their mesh-like roots and acting to reduce energy from waves and tidal currents.

Coastal estuaries and recesses in coastlines that form bays receive the run-off from erosion on steep catchments, which give them the tendency to fill in over time. As they infill, the movement of the tidal currents over the shallow areas create networks of sandbanks and channels. The sand banks grow upward to keep pace with water-level changes, while the channels get deeper to efficiently drain the excess water out to sea.

The researchers’ latest work shows that mangroves can facilitate this process, by adding leaf and root structures into the accumulating sediment, which increase the elevation while enhancing the trapping of new sediment arriving from the catchment.

Dr Barend van Maanen from the University of Southampton explains: “As a mangrove forest begins to develop, the creation of a network of channels is relatively fast. Tidal currents, sediment transport and mangroves significantly modify the estuarine environment, creating a dense channel network.

“Within the mangrove forest, these channels become shallower through organic matter from the trees, reduced sediment resuspensions (caused by the mangroves) and sediment trapping (also caused by the mangroves) and the sea bed begins to rise, with bed elevation increasing a few millimetres per year until the area is no longer inundated by the tide.”

In modelling of sea level rise in the study, the ability of mangrove forest to gradually create a buffer between sea and land occurs even when the area is subjected to potential sea level rises of up to 0.5mm per year. Even after sea level rise, the mangroves showed an enhanced ability to maintain an elevation in the upper intertidal zone.

Associate Professor Karin Bryan, from the University of Waikato, says the spread of mangroves is changing the New Zealand coastal landscape. “In New Zealand, mangroves have been traditionally viewed as undesirable as they take over areas where there were once sandy beaches. In other countries, this is not the case as they are seen as a buffer for climate change in low level areas.”

“Now we know that they also could play a critical role in buffering our coastal land from the effects of sea-level rise. Although the study is on Avicennia marina (the only species of mangrove that occurs in New Zealand), Avicennia occurs in every major mangrove habitat in the world.”

Overseas studies have shown mangroves have the ability to remove carbon from the atmosphere and protect people from hazards such as tsunami. The research team hopes that this work will enhance the case for protecting global fringing wetlands from the threats of drainage and clearance caused by development and aquaculture pressures.

“These findings show that mangrove forests play a central role in estuarine and salt marsh environments,” Associate Professor Giovanni Coco from the University of Auckland says. “As we anticipate changes caused by climate change, it’s important to know the effect sea level rise might have, particularly around our coasts.
“Mangroves appear to be resilient to sea level rise and are likely to be able to sustain such climatic change. The implications for the New Zealand coastline are considerable and will require new thinking in terms of sediment budgets and response to climatic changes.”

Environment

Extra-Mile Water Conservation Efforts Amidst Shortage

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water conserving

While some states are literally flooding due to heavy rains and run-off, others are struggling to get the moisture they need. States like Arizona and California have faced water emergencies for the last few years; water conserving efforts from citizens help keep them out of trouble.

If your area is experiencing a water shortage, there are a few things you can do to go the extra mile.

Repair and Maintain Appliances

Leaks around the house – think showerheads, toilets, dishwashers, and more – lead to wasted water. Beyond that, the constant flow of water will cause water damage to your floors and walls. Have repairs done as soon as you spot any problems.

Sometimes, a leak won’t be evident until it gets bad. For that reason, make appointments to have your appliances inspected and maintained at least once per year. This will extend the life of each machine as well as nip water loss in the bud.

When your appliances are beyond repair, look into Energy Star rated replacements. They’re designed to use the least amount of water and energy possible, without compromising on effectiveness.

Only Run Dishwasher and Washer When Full

It might be easier to do a load of laundry a day rather than doing it once per week, but you’ll waste a lot more water this way. Save up your piles of clothes until you have enough to fully load the washing machine. You could also invest in a washing machine that senses the volume of water needed according to the volume of clothes.

The same thing goes with the dishwasher. Don’t push start until you’ve filled it to capacity. If you have to wash dishes, don’t run the water while you’re washing. Fill the sink or a small bowl a quarter of the way full and use this to wash your dishes.

Recycle Water in Your Yard

Growing a garden in your backyard is a great way to cut down on energy and water waste from food growers and manufacturers, but it will require a lot more water on your part. Gardens must be watered, and this often leads to waste.

You can reduce this waste by participating in water recycling. Using things like a rain barrel, pebble filtering system, and other tools, you can save thousands of gallons a year and still keep your landscaping and garden beautiful and healthy.

Landscape with Drought-Resistant Plants

Recycling water in your yard is a great way to reduce your usage, but you can do even more by reducing the amount of water required to keep your yard looking great. The best drought-resistant plants are those that are native to the area. In California, for example, succulents grow very well, and varieties of cactus do well in states like Arizona or Texas.

Install Water-Saving Features

The average American household uses between 80 and 100 gallons of water every single day. You obviously can’t cut out things like showering or using the toilet, but you can install a few water-saving tools to make your water use more efficient.

There are low-flow showerheads, toilets, and faucet aerators. You could also use automatic shut-off nozzles, shower timers, and grey water diverters. Any of these water saving devices can easily cut your water usage in half.

Research Laws and Ordinances for Your City

Dry states like California, Arizona, New Mexico, and Nevada must create certain laws to keep the water from running out. These laws are put into practice for the benefit of everyone, but they only work if you abide by the laws.

If you live in a state where drought is common, research your state and city’s laws. They might designate one day per week that you’re allowed to water your lawn or how full you can fill a pool. Many people are not well versed in the laws set by their states, and it would mean a lot to your community if you did your part.

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Environment

Cyprus is the Forerunner for Ecotourism

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When I was looking for a second citizenship, I happened to see One Visa’s offer on Cyprus Citizenship by investment program. I had heard about Cyprus being a beautiful country, but I did not know much else, so I decided to start my own research about this gem of a place.

After I did some research, I discovered that Cyprus is a popular destination for tourists. Unfortunately, heavy tourism and the associated development affected villages here and there, with some communities being slowly abandoned. To avoid this from happening any further, Cyprus went into ecotourism, and today, it is the forerunner in this arena. Let’s look in further detail at ecotourism in Cyprus here.

How was it started?

It all started in 2006 with the launch of the “Cyprus Sustainable Tourism Initiative.” This program has the sole scope of promoting ecotourism developments in the tourism industry. It concentrates on those areas which require conservation and environmental safety. At the same time, it helps develop social, as well as economic statuses in the rural parts of Cyprus. Through this program, the government was able to acknowledge that ecotourism will play an essential role in the future of Cyprus, with the concept gaining momentum among tourists from all over the globe.

How to go about it?

So, now you are interested in going for an ecotourism vacation in Cyprus. How will you go about it? I would immediately say that everyone should visit the quaint Cypriot villages spread throughout the island. These communities have a smaller population, and not many tourists visit. They make for a great relaxing spot. Enjoy seeing the bustle of village life go by where simple pleasures abound. Most hamlets are linked by specific minibus tours which ferry tourists to these havens. These trips will have a regular schedule, aimed at promoting ecotourism further. Such tours will be regulated to ensure that while the villages can benefit and develop, they do not get overpopulated or overcrowded with tourists. Therefore, you can be sure to enjoy the beautiful sceneries that nature has to offer here.

If you are wondering if there are any activities to do here, my answer would be: “Yes, plenty.” You can go for some guided walks across various regions here. Here you will be able to explore the diversified natural beauty and wildlife of the area. Several agritourism activities and services are planned to open shortly. Once launched, you will be able to engage in picking olives, milking goats, and several other such events here.

What can be learned?

Although we are aware that natural resources need to be preserved, we do not always remember it in real life. When we go on tours such as these, we can realize the significance of protecting nature. Also, when more and more people visit these places, the concept of ecotourism will become popular among more people. Awareness about ecotourism is set to grow and spread throughout the world. Subsequently, sustainable tourism will gain popularity around the globe with Cyprus being the forerunner for ecotourism .

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