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  • Aug.15, 2017 - Newburgh, New York, U.S. -  Scientists warn that global climate change is bringing an increase in harmful blue-green algae blooms to freshwater ponds, lakes and streams.(Credit Image: © Brian Cahn via ZUMA Wire)
    20170815_zaf_ce6_008.jpg
  • Aug.15, 2017 - Newburgh, New York, U.S. -  Scientists warn that global climate change is bringing an increase in harmful blue-green algae blooms to freshwater ponds, lakes and streams.(Credit Image: © Brian Cahn via ZUMA Wire)
    20170815_zaf_ce6_003.jpg
  • September 29, 2018 - Srinagar, Kashmir, India - A Kashmiri boat man rows his boat in the thick mat of red algae seen spread on top of the Dal Lake on September 29, 2018 in Srinagar, the summer capital of Indian administered Kashmir, India. The red algae on the top surface of the lake has given it ugly look besides affecting its flora and fauna. (Masrat Zahra/NUR Photo) (Credit Image: © Masrat Jan/NurPhoto/ZUMA Press)
    20180929_zaa_n230_1213.jpg
  • Aug.15, 2017 - Newburgh, New York, U.S. -  Scientists warn that global climate change is bringing an increase in harmful blue-green algae blooms to freshwater ponds, lakes and streams.(Credit Image: © Brian Cahn via ZUMA Wire)
    20170815_zaf_ce6_001.jpg
  • July 18, 2019 - Moore Haven, Florida, USA - A yellow boom at the Moore Haven Lock and Dam on Lake Okeechobee directs algae into a collector July 18, 2019. The US Army Corps of Engineers is conducting research to develop improved strategies for detection, prevention and management of harmful algal blooms. (Credit Image: © Allen Eyestone/The Palm Beach Post via ZUMA Wire)
    20190718_zaf_p77_020.jpg
  • July 18, 2019 - Moore Haven, Florida, USA - Researchers from the U.S. Army Corps of Engineers setup an algae collector at the Moore Haven Lock and Dam on Lake Okeechobee, July 18, 2019. (Credit Image: © Allen Eyestone/The Palm Beach Post via ZUMA Wire)
    20190718_zaf_p77_026.jpg
  • July 18, 2019 - Moore Haven, Florida, USA - Researcher Martin Page, U.S. Army Corps of Engineers looks over a yellow boom that directs algae into a collector at the Moore Haven Lock and Dam on Lake Okeechobee, July 18, 2019.  The US Army Corps of Engineers is conducting research to develop improved strategies for detection, prevention and management of harmful algal blooms. (Credit Image: © Allen Eyestone/The Palm Beach Post via ZUMA Wire)
    20190718_zaf_p77_024.jpg
  • July 18, 2019 - Moore Haven, Florida, USA - A yellow boom at the Moore Haven Lock and Dam on Lake Okeechobee directs algae into a collector July 18, 2019. The US Army Corps of Engineers is conducting research to develop improved strategies for detection, prevention and management of harmful algal blooms. (Credit Image: © Allen Eyestone/The Palm Beach Post via ZUMA Wire)
    20190718_zaf_p77_022.jpg
  • July 18, 2019 - Moore Haven, Florida, USA - A yellow boom at the Moore Haven Lock and Dam on Lake Okeechobee directs algae into a collector July 18, 2019. The US Army Corps of Engineers is conducting research to develop improved strategies for detection, prevention and management of harmful algal blooms. (Credit Image: © Allen Eyestone/The Palm Beach Post via ZUMA Wire)
    20190718_zaf_p77_021.jpg
  • July 18, 2019 - Moore Haven, Florida, USA - Researcher Martin Page, U.S. Army Corps of Engineers looks over a yellow boom that directs algae into a collector at the Moore Haven Lock and Dam on Lake Okeechobee, July 18, 2019.  The US Army Corps of Engineers is conducting research to develop improved strategies for detection, prevention and management of harmful algal blooms. (Credit Image: © Allen Eyestone/The Palm Beach Post via ZUMA Wire)
    20190718_zaf_p77_023.jpg
  • July 18, 2019 - Moore Haven, Florida, USA - Researcher Martin Page, U.S. Army Corps of Engineers looks over a yellow boom that directs algae into a collector at the Moore Haven Lock and Dam on Lake Okeechobee, July 18, 2019.  The US Army Corps of Engineers is conducting research to develop improved strategies for detection, prevention and management of harmful algal blooms. (Credit Image: © Allen Eyestone/The Palm Beach Post via ZUMA Wire)
    20190718_zaf_p77_015.jpg
  • July 18, 2019 - Moore Haven, Florida, USA - Researchers from the U.S. Army Corps of Engineers setup an algae collector at the Moore Haven Lock and Dam on Lake Okeechobee, July 18, 2019. (Credit Image: © Allen Eyestone/The Palm Beach Post via ZUMA Wire)
    20190718_zaf_p77_027.jpg
  • June 27, 2017 - Thessaloniki, Greece - Red tide phenomenon caused by algal blooms in Thessaloniki, Greece, on June 27, 2017 , a discoloration of coastal waters due to large algal blooms. Red tide is a common name for a phenomenon known as an algal bloom, caused by species of dinoflagellates, taking on a red or brown color. The most conspicuous effects of these kinds of red tides are associated wildlife mortalities of marine and coastal species of fish, birds, marine mammals, and other organisms. (Credit Image: © Grigoris Siamidis/NurPhoto via ZUMA Press)
    20170627_zaa_n230_491.jpg
  • July 18, 2019 - Moore Haven, Florida, USA - The US Army Corps of Engineers is conducting research to develop improved strategies for detection, prevention and management of harmful algal blooms. Equipment on the site at the Moore Haven Lock and Dam on Lake Okeechobee, July 18, 2019. (Credit Image: © Allen Eyestone/The Palm Beach Post via ZUMA Wire)
    20190718_zaf_p77_025.jpg
  • July 18, 2019 - Moore Haven, Florida, USA - Researchers work on water sampling and visualization apparatus at the Moore Haven Lock and Dam on Lake Okeechobee, July 18, 2019. The US Army Corps of Engineers is conducting research to develop improved strategies for detection, prevention and management of harmful algal blooms. (Credit Image: © Allen Eyestone/The Palm Beach Post via ZUMA Wire)
    20190718_zaf_p77_016.jpg
  • July 18, 2019 - Moore Haven, Florida, USA - The US Army Corps of Engineers is conducting research to develop improved strategies for detection, prevention and management of harmful algal blooms. Equipment on the site at the Moore Haven Lock and Dam on Lake Okeechobee, July 18, 2019. (Credit Image: © Allen Eyestone/The Palm Beach Post via ZUMA Wire)
    20190718_zaf_p77_017.jpg
  • July 18, 2019 - Moore Haven, Florida, USA - The US Army Corps of Engineers is conducting research to develop improved strategies for detection, prevention and management of harmful algal blooms. Equipment on the site at the Moore Haven Lock and Dam on Lake Okeechobee, July 18, 2019. (Credit Image: © Allen Eyestone/The Palm Beach Post via ZUMA Wire)
    20190718_zaf_p77_019.jpg
  • July 18, 2019 - Moore Haven, Florida, USA - A hose draws water from Lake Okeechobee to equipment being used by the US Army Corps of Engineers  to conduct research to develop improved strategies for detection, prevention and management of harmful algal blooms at the Moore Haven Lock and Dam on Lake Okeechobee, July 18, 2019. (Credit Image: © Allen Eyestone/The Palm Beach Post via ZUMA Wire)
    20190718_zaf_p77_018.jpg
  • June 17, 2017 - Qingdao, Qingdao, China - Qingdao, CHINA-June 17 2017: (EDITORIAL USE ONLY. CHINA OUT) ..Green algae covers the coast in Qingdao, east China's Shandong Province, June 17th, 2017. Workers are busy removing the green algae. (Credit Image: © SIPA Asia via ZUMA Wire)
    20170617_zaa_s145_048.jpg
  • May 4, 2019 - London, UK, UK - London, UK. Trafalgar Square fountains covered in green algae. Recent warm weather in the capital has caused large amounts of green algae to form in the ponds in Trafalgar Square's fountains. (Credit Image: © Dinendra Haria/London News Pictures via ZUMA Wire)
    20190504_zaf_l94_063.jpg
  • June 22, 2017 - Tsingtao, Tsingtao, China - Tsingtao CHINA-June 22 2017: (EDITORIAL USE ONLY. CHINA OUT)..People enjoy 'fancy ball' of green algae in Tsingtao, east China's Shandong Province, June 22nd, 2017. As green algae blankets the beach in Tsingtao, many tourists make good use of it and have some fun. (Credit Image: © SIPA Asia via ZUMA Wire)
    20170622_zaa_s145_345.jpg
  • June 20, 2017 - Tsingtao, Tsingtao, China - Tsingtao, CHINA-June 20 2017: (EDITORIAL USE ONLY. CHINA OUT) Green algae blankets beach and sea in Qingdao, east China's Shandong Province, June 20th, 2017. (Credit Image: © SIPA Asia via ZUMA Wire)
    20170620_zaa_s145_059.jpg
  • People swim as a worker removes slippery algae by painting lime wash on a rock in the Dalebrook tidal pool in Kalk Bay. While public spaces, in theory, are closed under Level 3 lockdown regulations, much of the public seemed to have decided that these spaces are now open. Workers could also be seen tidying up some of these spaces today, Wednesday June 24, 2020. The city of Cape Town has appealed to the national government to ease the lockdown on public spaces, and it appears they may be preparing for re-opening. PHOTO: EVA-LOTTA JANSSON
    20200624_SeaCOS_3236.jpg
  • People swim as a worker removes slippery algae by painting lime wash on a rock in the Dalebrook tidal pool in Kalk Bay. While public spaces, in theory, are closed under Level 3 lockdown regulations, much of the public seemed to have decided that these spaces are now open. Workers could also be seen tidying up some of these spaces today, Wednesday June 24, 2020. The city of Cape Town has appealed to the national government to ease the lockdown on public spaces, and it appears they may be preparing for re-opening. PHOTO: EVA-LOTTA JANSSON
    20200624_SeaCOS_3224.jpg
  • A man walks through accumulated algae on the waterfront of Fort Lauderdale, FL, USA, as Hurricane Irma passes through on Sunday, September 10, 2017. Photo by Paul Chiasson/CP/ABACAPRESS.COM
    RTI606337_013.jpg
  • Uncertainty swirls around how the Black Sea got its name. Some speculate that it stemmed from black sludge that covered objects in the sea's depths. Others say it was coined by sailors who observed that the water appeared black during winter storms. Perhaps the sea would have a different name if people had seen it from space in spring or summer, when the sea is transformed from drab to colorful.<br />
On May 7, 2016, the Moderate Resolution Imaging Spectroradiometer (MODIS) instruments on NASA's Aqua satellite acquired this natural-color image of the Black Sea, a large inland body of water bordered by Bulgaria, Romania, Ukraine, Russia, Georgia, and Turkey. Light blue colors toward the middle of the sea are likely the result of blooming phytoplankton.<br />
Phytoplankton are the "primary producers" of the seas and oceans. These plant-like, microscopic algae, bacteria, and protists use chlorophyll to make food from sunlight and dissolved nutrients. More than 150 different types of phytoplankton have been observed in the Black Sea, supporting a rich bounty of fish and other marine life.<br />
One type of phytoplankton found in the Black Sea are coccolithophores - microscopic plankton that are plated with white calcium carbonate. However, early May might be too soon to see them blooming here in large numbers, according to ocean scientist Norman Kuring of NASA's Goddard Space Flight Center. Their signature milky blue swirls are more common in summer. On the other hand, climate change is altering the timing of phytoplankton blooms around the world. Only a surface sample can confirm the exact composition of this bloom.<br />
Other factors could also contribute to the myriad colors. The middle of the sea is quite deep, diving down more than 2000 meters (7,000 feet). In this region, surface water generally does not mix with the deeper, saltier, anoxic waters. But in the shallows closer to the coasts, some color could be due to the mixing and stirring of bottom sediments. Browns and greens are also
    rtisipausa_17601803.jpg
  • View Image Comparison<br />
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In 1985, sand and coral dominated the Red Sea coast in an area about 30 kilometers (19 miles) northwest of Hurghada, Egypt. Aside from a lone road that ran along the coast, the desert landscape was largely untouched by human activity. Three decades later, development has radically reshaped the coastline.<br />
The construction of El Gouna, a resort town, began in 1989. Building proceeded in waves, with a small cluster of summer holiday homes eventually morphing into a year-round community of about 23,000 people. As of 2015, El Gouna included 16 hotels, some 2,700 villas, 3 marinas, an 18-hole golf course, and hundreds of restaurants and shops.<br />
Developers were not content to simply build on the existing landscape. To give<br />
seaside views and easy access to the water to as many El Gouna residents and guests as possible, builders dredged huge amounts of sand from coastal bays and inlets to sculpt the canals, marinas, hotels, and artificial islands of the resort.<br />
The changes to the coast are evident in this pair of natural-color images acquired by sensors on Landsat satellites. The top image was captured by the Thematic Mapper (TM) on Landsat 5 in 1985; the bottom image was captured by the Operational Land Imager (OLI) on Landsat 8 in 2014.<br />
While El Gouna has pledged to become a carbon neutral town, the resort has come with a cost for the local environment, particularly the coral reef ecosystems that make the area so appealing. Construction of coastal hotels and other infrastructure often involved the destruction of fringing reefs along the coastlines, caused by the dredging or dumping of large amounts of sediment.<br />
While it is difficult to distinguish between reefs, underwater sand, sea grass, and algae in natural-color Landsat imagery, some scientists have used other wavelengths to track changes in corals near El Gouna and neighboring Hurghada. The findings indicate the reefs may be in trouble. According to one study, corals near Hurghada
    rtisipausa_20553502.jpg
  • September 1, 2017 - inconnu - Britain’s royal Navy has images what its submarine fleet may look like by the end of the century.And it consists of a range of vessels all inspired by ocean wildlife.Chiefs asked a team from UK engineering naval defence forum UKNEST to develop concepts.The manned and unmanned concept undersea vessels are intended to handle a variety of tasks in a future world experiencing intense competition between nations for ocean resources.Submarines may have become much more sophisticated but the basic design, construction, and missions have hardly changed in 40 years.The new tasks in the seas will be for aquaculture, mining, and industry in deep ocean areas.The Royal Navy asked UKNEST to come up with some ideas to explore how new technology can address new threats and protect British assets and freedom of navigation. The ideas bleeding-edge technology with simplified complex systems to produce more flexible and cheaper vessels.The main concept is the Nautilus 1000 mothership. Designed to look like a cross between a whale and a manta ray, the Nautilus is conceived as a command and control submarine as well as a weapons carrier. It would have an advanced autonomous systems and ''neuro-interfacing'' that would allow it to be controlled by thought.The submarine only needs a crew of about 20.Steering and depth control would use flexible wing-tips that can alter their shape like a living fish.A 3D-printed acrylic hull bonded to super-strong alloys would give the sub enough strength to withstand depths of over 1,000 metres/ (3,300 ft while providing more speed and stealth. The Nautilus would also a skin of nano-thin scales that are bonded with a material that allows them to be realigned to reduce drag and therefore noise, and absorb incoming sonar pings.For power, the Nautilus uses hybrid algae-electric propulsion in cruise mode, with a large-scale tunnel drive using bladeless fans that force through water like a smooth jet. Where more speed is ne
    RTI20170901_zaf_v01_001.jpg