Climate change poses huge challenges and some projections say it will cause hundreds of millions to become refugees. Desertification in sub-Saharan Africa plays a big part of that, and that in turn feeds into Europe's unfolding migrant crisis. Inna Modja is a Malian singer and activist who has been to Senegal for Newsnight to witness a pan-African initiative, the Great Green Wall. It aims to improve livelihoods in the Sahel region, reverse desertification, and break the cycle of exodus.

⁣Eco@Africa: Focus On Waste From Farming Harvest

For more information log on to http://www.channelstv.com

⁣Sustainable Farming Practice In Nigeria | Eco@Africa

For more information log on to http://www.channelstv.com

⁣African Change-Makers: Godfrey Nzamujo - Songhai Centre

How do subterranean cities of ants look like? 10 tons of cement were required to fill the wholes and tunnels. Then it took weeks to uncover the secret megalopolis of the ants. With the help of mechanical diggers, brazilian scientists removed tons of earth. At last, the scientists begin to see the structure of the city state.

Get 1 year of both Nebula and CuriosityStream for just 14.79 here: http://curiositystream.com/realscience using the code "realscience"

New streaming platform: https://watchnebula.com/Patreon: https://www.patreon.com/realscience
Twitter: https://twitter.com/stephaniesamma
Instagram: https://www.instagram.com/stephaniesammann

Credits:

Writer/Narrator/Editor: Stephanie Sammann
Editor: Dylan Hennessy (https://www.behance.net/dylanh....ennessy1)Illustrator Kirtan Patel (https://kpatart.com/illustrations)
Animator: Mike Ridolfi (https://www.moboxgraphics.com/)
Sound: Graham Haerther (https://haerther.net)
Thumbnail: Simon Buckmaster (https://twitter.com/forgottentowel)
Producer: Brian McManus (https://www.youtube.com/c/realengineering)

Imagery courtesy of Getty Images

References:

[1] https://www.ncbi.nlm.nih.gov/p....mc/articles/PMC72123
[2] https://www.antscanada.com/ant-biology/
[3]https://onlinelibrary.wiley.co....m/doi/full/10.1111/e
[4] https://www.sciencedirect.com/....science/article/abs/
[5] Hölldobler, B., & Wilson, E. O. (1994). Journey to the ants: A story of scientific exploration.
[6] https://onlinelibrary.wiley.co....m/doi/10.1002/jmor.1
[7] https://www.npr.org/2008/11/29..../97547749/the-secret
[8] https://en.wikipedia.org/wiki/The_Selfish_Gene
[9] https://www.pbs.org/video/eo-w....ilson-ants-and-men-f

Before they can bite your cat or dog, these little "itch hikers" make an amazing leap 100 times faster than the blink of an eye. So how do they do it?

DEEP LOOK is a ultra-HD (4K) short video series created by KQED San Francisco and presented by PBS Digital Studios. See the unseen at the very edge of our visible world. Explore big scientific mysteries by going incredibly small.---Spring is here, and with it, the start of flea season. With the warming weather, people and their pets are spending more time outside — which increases the chances of bringing home a hungry “itch hiker.”While pet owners curse the tiny insects and look for a way to rid them from their homes, it turns out fleas actually perform some remarkable athletic feats, like jumping 50 times their height — the equivalent of a human jumping 300 feet — or leaping so fast that they take off 100 times faster than the blink of an eye.No larger than a sesame seed and flattened side to side, fleas can slip through fur with ease. Their jump is so fast they seem to simply vanish and reappear somewhere else.“It's there and then it's gone,” said Gregory Sutton, a professor of biomechanics at the University of Lincoln in the United Kingdom.

--- What do flea eggs look like?After feeding on blood, adult fleas mate and lay eggs. The eggs drop out of their host animal’s fur or feathers and into their bedding or nest. The eggs are translucent white and very small. At 0.5mm the eggs are about the size of a grain of salt.

--- Why do fleas bite me?Blood is a protein-rich food for fleas. Adult fleas feed on blood before they can procreate.

--- Why does my dog/cat keep getting fleas?Fleas are nest parasites. Their eggs fall from the host animal into its bedding where they hatch. The worm-like larvae feed on organic debris (including the adult fleas’ feces) in the bedding. They then curl up into a cocoon and undergo metamorphosis into their adult form. Flea baths tend to kill the fleas currently on the pet, but there may still be flea eggs and larvae in the pet’s bedding. When those young fleas mature they may reinfest the pet.

Read the entire article on KQED Science:
https://www.kqed.org/science/1....957872/a-fleas-fanta

For more information:Why do Large Animals Never Actuate Their Jumps with Latch-Mediated Springs? Because They can Jump Higher Without Them. (Gregory P Sutton, Elizabeth Mendoza, Emanuel Azizi, Sarah J Longo, Jeffrey P Olberding, Mark Ilton, Sheila N Patek)https://academic.oup.com/icb/a....rticle/59/6/1609/554

The multiplicity of foreign interests in African mineral wealth and resources has resulted in increased military bases on African soil and the threat of a reemergence of cold wars, civil wars the millions of people displaced of on the continent. How can this be avoided?

⁣This documentary follows the training regimen of fighters from all over the world as they prepare for the prestigious all-world full contact karate tournament in Japan.

One of my favorite quotes and a reminder to those who are hoodwinked, bamboozled and misled.