Ethiopia is constructing a $4.8 billion dam along the Nile River that has Egypt angry. The Grand Ethiopian Renaissance Dam, or GERD, will have a capacity of 6.45 GW, doubling the country’s power capacity. It will provide electricity to 60% of Ethiopian households and create a massive reservoir for tourism and the fishing industry. However, the project poses a threat to Egypt, who relies heavily on the Nile River. This has led to tensions between the nations and a political battle over the river.

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Information
https://www.bbc.com/news/world-africa-53573154
https://www.reuters.com/articl....e/us-ethiopia-dam-fa
https://www.hydropower.org/cas....e-studies/ethiopia-g
https://www.power-technology.c....om/projects/the-gran
https://www.middleeasteye.net/....news/grand-ethiopia-
https://en.wikipedia.org/wiki/....Grand_Ethiopian_Rena
https://www.brookings.edu/blog..../africa-in-focus/202

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In places around the world, supplies of groundwater are rapidly vanishing. As aquifers decline and wells begin to go dry, people are being forced to confront a growing crisis.

Much of the planet relies on groundwater. And in places around the world – from the United States to Asia, the Middle East, Africa and Latin America – so much water is pumped from the ground that aquifers are being rapidly depleted and wells are going dry.

Groundwater is disappearing beneath cornfields in Kansas, rice paddies in India, asparagus farms in Peru and orange groves in Morocco. As these critical water reserves are pumped beyond their limits, the threats are mounting for people who depend on aquifers to supply agriculture, sustain economies and provide drinking water. In some areas, fields have already turned to dust and farmers are struggling.

Climate change is projected to increase the stresses on water supplies, and heated disputes are erupting in places where those with deep wells can keep pumping and leave others with dry wells. Even as satellite measurements have revealed the problem’s severity on a global scale, many regions have failed to adequately address the problem. Aquifers largely remain unmanaged and unregulated, and water that seeped underground over tens of thousands of years is being gradually used up.

In this documentary, USA TODAY and The Desert Sun investigate the consequences of this emerging crisis in several of the world’s hotspots of groundwater depletion. These are stories about people on four continents confronting questions of how to safeguard their aquifers for the future – and in some cases, how to cope as the water runs out.
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Humankind: Amazing moments that give us hope ➤ http://bit.ly/2MrPxvd
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Animalkind: Cute, cuddly & curious animals ➤ http://bit.ly/2GdNf2j
Just the FAQs: When news breaks, we break it down for you ➤ http://bit.ly/2Dw3Wnh
The Wall: An in-depth examination of Donald Trump’s border wall ➤ http://bit.ly/2sksl8F

This video is about why food is so expensive in Nigeria.

1. Inflation of Naira
2. Weakness of Naira against US dollar
3. Land border closures in 2019 (when Nigerian closed land border trading with neigboring countries)
4. Road closures during Covid-19
5. Limited Storage Facilities available to farmers
6. Covid-19 rules that prevented groups of workers from getting together to work the land
7. Herdsmen
8. Boko Haram
9. Climate change
10. Road insecurity due to Boko Haram, bandits, and herdsmen
11. Underdevelopment and underfunding of the agriculture sector for decades

Nigerian government and people are now focusing on agriculture.

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Iveoma Media uncovers the investment opportunities in Nigeria.

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Sequential hermaphroditism occurs when an organism changes sex at some point in its life. It’s seen in a few species of gastropods and plants, but mostly fish, like napoleon wrasse, clownfish, groupers and marine angelfish. This transformation involves the complete restructuring of their gonads, as well as changes in their morphology and behaviour. For these fish, sex change is a usual part in their life cycle, and it’s one that carries adaptive advantages.

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All images and videos used herein are 1) in the public domain, 2) used under a Creative Commons license, 3) used with a license, or 4) used under the parameters of Fair Use law.

References:
Avise JC & Mank JE. Evolutionary perspectives on hermaphroditism in fishes. Sex Dev 2009;3:152–163.
Berglund A. Sequential hermaphroditism and the size-advantage hypothesis: an experimental test. Anim Behav 1990;30:426–433.
Todd EV, et al. Bending genders: the biology of natural sex change in fish. Sex Dev 2016;10:223–241.
Casas L, et al. Sex change in clownfish: molecular insights from transcriptome analysis. Sci Rep 2016;6:35461.
Goikoetxea A, et al. Stress and sex: does cortisol mediate sex change in fish? Reproduction 2017;154:R149–R160.
Kazancioğlu E & Alonzo SH. Costs of changing sex do not explain why sequential hermaphroditism is rare. Am Nat 2009;173:327–336.
Waples RS, et al. Consequences of sex change for effective population size. Proc Biol Sci 2018;285:20181702.
Muñoz RC & Warner RR. A new version of the size-advantage hypothesis for sex change: incorporating sperm competition and size-fecundity skew. Am Nat 2003;161:749–761.

Credits:
ふうけ. https://commons.wikimedia.org/....wiki/File:Kobudai150
prilfish. https://www.flickr.com/photos/....silkebaron/232002459
Rickard Zerpe. https://commons.wikimedia.org/....wiki/File:Orange_sku
Sasuke Tsujita. https://www.youtube.com/watch?v=GD2-ZZsWBYs&ab_channel=SasukeTsujita
フリッパーダイブセンター 群馬県伊勢崎市のダイビングショップ FLIPPER dive center. https://www.youtube.com/watch?v=-5YLywPkUjM&ab_channel=%E3%83%95%E3%83%AA%E3%83%83%E3%83%91%E3%83%BC%E3%83%80%E3%82%A4%E3%83%96%E3%82%BB%E3%83%B3%E3%82%BF%E3%83%BC%E7%BE%A4%E9%A6%AC%E7%9C%8C%E4%BC%8A%E5%8B%A2%E5%B4%8E%E5%B8%82%E3%81%AE%E3%83%80%E3%82%A4%E3%83%93%E3%83%B3%E3%82%B0%E3%82%B7%E3%83%A7%E3%83%83%E3%83%97FLIPPERdivecenter
https://www.youtube.com/watch?v=4sr7rPhfWCc&ab_channel=SCUBADIVINGPRO-SHOPMAHI-MAHI
Rickard Zerpe. https://commons.wikimedia.org/....wiki/File:Yellow_clo
Carl Malamud. https://commons.wikimedia.org/....wiki/File:Yellow_Gob
Rickard Zerpe.
https://www.flickr.com/photos/....krokodiver/238064296
alif_abdulrahman. https://www.flickr.com/photos/....alif_abdulrahman/188
aquarist.me. https://www.flickr.com/photos/....aquarist/7075443335/
Christian Gloor. https://www.flickr.com/photos/....christian_gloor/3020
Christian Gloor. https://www.flickr.com/photos/....christian_gloor/3150

#sexchangingfish #sexchange #naturalselection #hermaphroditism #sequentialhermaphroditism #hermaphrodite #biology #evolutionarybiology #zoology #clownfish #kobudai #asiansheepshead

Exploring the protective systems that keep the power grid from self destructing.

We usually think of the power grid in terms of its visible parts: power plants, high-voltage lines, and substations. But, much of the complexity of power grid comes in how we protect it when things go wrong. When your power goes out, it’s easy to be frustrated at the inconvenience, but consider also being thankful that it probably means things are working as designed to protect the grid as a whole and ensure a speedy and cost-effective repair to the fault.

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-Website: http://practical.engineering

Writing/Editing/Production: Grady Hillhouse
Director: Wesley Crump

Tonic and Energy by Elexive is licensed under a Creative Commons Attribution License
Source: https://www.youtube.com/watch?v=U6fBPdu8w9U

This video is sponsored by Hello Fresh.

At On A Level Productions OUR MOTTO IS: Everyone has the right to know the truth! Our GOAL: To be a catalyst for social transformation; using uplifting and entertaining media to empower and impact on people’s lives. ON A LEVEL PRODUCTIONS TAKING YOU TO HIGHER HEIGHTS!

In this feature of The On A Level (OAL) Talkshow, Robin Walker author of the acclaimed book ‘WHEN WE RULED’ joins Ankhobia and school teacher Nigel Oran for an informative and factual discussion, on who were the real ancient Egyptians. Robin specialises in African World History which includes Egyptology. He is the author of several books: ‘Classical Splendour: Roots of Black History’, ‘The West African Empire of Songhai, Sword, Seal and Koran’, and ‘Africa Before Slavery’. Listen in as he shares the glory and magnificence of Africa’s great past dispelling many myths along the way with Ankhobia.

On A Level Productions Unauthorised Use Is Prohibited.


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