Fighting Sahara Desertification: The Green Wall Project | SLICE SCIENCE | FULL DOC
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- เผยแพร่เมื่อ 9 ก.พ. 2025
- Discover how the Sahara has advanced 250 kilometers southward in the last century, turning lands barren and displacing people. In Morocco and Senegal, a relentless fight against desertification is underway, marked by the rise of a great green wall to rehabilitate the oases.
Documentary: PLANET SAND, Ep 1 Sahara Reconquering Lost Lands
Directed by: Thierry Berrod
Production: MONA LISA PRODUCTION
#SaharaDesert#Desertification#GreenWall#EnvironmentalEfforts #Morocco#Senegal#ClimateAction#OasisRestoration #SustainableFuture #CombatDesertification
We are having such difficult time to stop a desert on our own planet yet we are spending billions of dollars on trying to get to a planet with conditions far worse. What a great documentary!
unfortunately it has become our main way or living, extorting every small upgrade just to consume and throw away(like we have another planet we can just hop on to). even going as far as making behind the scene deals to not innovate too much so they can milk us. true short story; back when lightbulbs became a thing they started lasting years and eventually decades so factories didnt sell anymore, corporates made a deal that a lightbulb wouldnt excede (xxxx)hours so that they could keep selling. im guessing
Not true. I am afraid you are eco-fanatic.
Morroco has been replanting native species for 40 years now and it has made a difference. Iran is rebuilding a 4,000 mile Eden that Sadam Hussain had destroyed and the people there were murdered. It was 4,000 square miles of paradise and marshes, believed to be "Eden".
Our planet will die.... the sun has a lifespan, no matter what you do all life on earth will cease one day
And you are making worthless comments on youtube.
Fantastic! Keep planting. Don’t stop! Future generations will thank every single one of you!
I watch on Google Earth and your work is paying off. I can see the difference in just a few years. Its noticeable. Proves we can make a difference. It may take decades, but it's worth it.
This is a good news
The success of such programmes would largely solve the issues of migration
Deportations solve that
Would create a very positive off set indeed
@@MichaelHBallard It's caused by overgrazing.
False! Foreign extraction of resources is the main driver of migration
@@adenwellsmith6908 Indeed, as long mankind keep stuck in their manners nothing change! Effective education is also required. Instead of dreaming/wishing a Audi/Mercedes/BMW and a villa within the EU they should improve their own enviroment.
Within the EU is the need/demand for energy very high and increasing. Why are there no wind-/solarparks and transporting/sold the energy to the EU?
Glad this scientist is a very smart man helping this nation. Hope they succeed.
Very interesting. I hope this program spreads. Good luck.
Thank you !
23:04 "Today this unloved plant with a terrible reputation"
In my country, Mexico, the "unloved" plant is a treasure that provides us with food and fruit for us and our animals.
We grow "vegetable" prickly pear for human consumption, the pads are colected when they are about a hand in size and tender
We grow "forage" prickly pear for our animals, the thornless pads are allowed to grow large and a pad can weight a couple of kgs, ground and mixed with yeast, molasses and ammonium you crate a highly nutritious "soup" that's fed to cattle
We grow "fruit" prickly pear which is specially selected to produce sweet fruits.
🎉🎉🎉 ❤... Thank everyone who helps save our earth... Respect from Thailand...
in that entire 49 minute video, there was not one single mention of permaculture. Look at what they're doing in India. Communities have been coming together to build water catchment structures and other warthworks to hold on to rain water. This documentary fell so short of what it could have communicated. Yes, when it rains, there are floods. But why? Because the ground can't absorbe the water, and there's nothing to stop it from flowing. They need to slow, spread, and sink the water.
@sonicclang - you’ve said it best ⭐️ permaculture is the way to go 🌱
could be because the new gen do not have the knowledge from the old gen about farming
the old ones never have change to pass on the wisdom and knowledge something like permaculture and water
the younger gen already prefer to migrate
There are other vids that show water retention and permaculture.
Indeed, it's unfortunate that permaculture techniques and practices aren't mentioned more often. However, there are permaculture projects in the Great Green Wall project! Programs like Justidiggit and Commonland are working hard on the ground to spread berm/water retention techniques!
Действительно. Первое видео, которое рассказало мне мне о проекте, говорило, как жители рыли ловушки для дождей, строили ровы для задержания воды на склонах. Как строят и роют на новых участках и как трава уже закрыла старые,и какие там высокие деревья. Другое показала,как жителям помогают делать свои сады, и они своими участками строят эту стену. Куча деревьев, кустов и небольшая площадь на однолетники. На одну семью. Есть методы и есть учителя.
The great green wall is a fantastic project, the problem is: up till now, pretty much only Senegal works on it seriously and the rest of the wall is non existant.
On another hand, Senegal has now 20 years of knowledge on the topic, which will be helpful for the future. But we need to speed the process.
You might enjoy learning about what is happening in Niger - 300,000 hectares successfully rehabilitated, resulting in 500,000 people no longer needing food aid. Look up Andrew Millison - he just came out with a video covering it on 11/13/24. It's so hopeful, even as it needs to be scaled up exponentially.
Most other countries are currently in civil wars
This doc was amazing. Thank you
Imagine if the worlds "defense" budgets were directed towards sanity?
Well if authoritarians could stop invading countries we could
The banksters want forever wars. 😢😢😢
Good idea, but only if the money actually reaches the people at the end of the line, not the pockets of the greedy
Even if it was only 50% of the US budget, it would be enough.
We as people were all winners
Wonderful documentary. Stop the progression of desert , future generations will thank you for your hard work and vision.
Thank you !!
19:09 Wow, respect to those ladies climbing the palm trees.
... those spikes that grow to be leaves can be dangerous.
Moringa, plant more moringa to address not only desertification but even nutrition of people and animals.
Was wondering about the same plant
another great documentary from slice
Thank you !
Prickly pear is a wonder plant. Its edible, medicinal, and utilitarian.
The green CAN be returned. If you work hard, we will believe in you!!!! 💪🏻
Very informative! Hoping to eventually see a return to the with updates for these areas and the people they spoke to
Permaculture techniques can also help combat desertification. See Andrew Millison's videos about successful efforts in India's desert regions.
Wonderful... Beautiful land and people!
Sahara is already a desert, it cannot desertify, the green wall is being created south of Sahara, in the Sahel
There are marginal micro climates even in a desert. Especially where there is water available. Also there are other buffer zones other than the Sahel.
That's what an outsider think, in the reality there is large Savannah of desert Acacia,Cypress olives and other Sahara trees in the heart of the desert.
There is also some seasonal lakes and water sources
Wow you sound dumb. 👌
Many of those desert because human cattle eat the grass and killing the habitats. This need to be stop and tell them to grow something
Couldn't you use hemp as as a frontier crop?
Also could you make hemp hessian as both a wind barrier, a shade cloth and as a moisture trap in coastal areas to capture evening moisture and too moisture driven inland from the sea?
And as the hessian breaks down the fibres feed the soil.
Well done for the awesome work and achievements.
Hard to say if hemp would grow there. That's half the problem. The conditions are so incredibly harsh, and so dry, that few plants can tolerate it, let alone thrive. The second half of the problem is that they are starting well back from the beginning of the problem. Note how they talk about the ocean being miles away from where they are building these structures. Those miles give the wind plenty of time to develop speed and power, which makes it harder to combat where they are. What they need to do is to the source of the problem and start there. Block the winds at the oceanfront property, and you will see a huge change in winds miles and miles inland. It doesn't take much, either, because you're catching the wind before it's had time to build up a head of steam.
@@threeriversforge1997 Thank you and good luck with the vital, awesome, work you are doing.👍😀
Hemp is a very underestimated crop! And has been for probably thousands of years!
Good for soil, the weed can be turned into very resistant clothing and used as building material...
But sadly ignorant religious politicians put a stop to that because they thought the farmers was growing drugs/narcotics...
Problem is Hemp is a hungry thirsty plant it need lots of nutrients and water hence why it grows so well in deltra countries at river mouths like Bangladesh
@@Onionbaron Depont chemicals invented nylon rope unpopular so by putting it on the drugs of addiction cut supply of hemp ropes the main export of Bangladesh. 1960 ww ban C/O the ladder of drugs. 70 and still had no H
It's popular among users as it doesn't break so easily as nylon rope. JS
Africa is such an amazing continent, wish it could have been easier to travel there
The under ground drainage tunnel was blocked due to change in lifestyle.
In the days of old people worked together to do whatever it takes to survive and it takes a community thrive.
Nowadays due to Western individuality influences. People forgot how to come together and accomplish a common goal.
People have became selfish.
one of the biggest issues in reforesting is insufficient water. I'm reallyyyyyyyyyyy hoping that some of the new water adsorbant materials (e.g. various MOFs) will allow dry regions sufficient water. In particular, really interested in a new MOF hydrogel that can be put in the soil to retain water and even pull water out of the air as a way to promote plant growth.
They use half-moon trench painting. It allows for the small amount of rain water to collect for the trees they've planted. They've done it, and continue to.
@@Rayna-gn3ni : I'm familiar with those as well, which are also great, but they work in different ways. Those collect rain water. The MOFs hold onto rainwater so it doesn't spread into the soil as quickly; they also pull water from air. So both are really good!
@@Rayna-gn3ni You have to be the only non bot on here XD. Half of the world is flooding and they talking about "oNlY sO mUcH wAtEr" funny to see people only retaining 10mins of it to fit their own view XD
Dew absorbents looks promising! (if there is dew of course!)
We just need more beaver dams 🦫
No worries, we are making our on deserts here in europe.
Not true
I mean if you think about it is a blessing to them but no one can see it??? Imagine they do a project with the help of their government to put up all kinds of walls and shelters that automatically collect sands since it wil blow into it and thus make as many as big cement block and concret block as they can and make big cities and even stronger walls and at the same time sell them as well as big block of cement and concret and within year they will be famouse and rich, mind power is in great demand everywhere ha ha ha ....
@@zbyniu-gh8sgit's true , there us a big desert in Spain and another in Romania I guess
@@MegaFarkh but we are not making them
With Nord Stream gone , prepare for higher bills, climate change/ season 😯😯
God bless 🙏🏿 and help the world 🌍 ❤ universe as well blessings
Perhaps a small canal no wider than 12 inches wide can be built from the nile river to lake Chad and along the way the water can be used to grow trees and plants and that way fight desertification
very nice video bro and research
Thank you for watching !
Great documentary
Condensation of the humidity would bring many gallons of water to a desert region. The Moses West Foundation makes a water machine that produces at least 12 gallons of water daily. Also, growing desert grass into huge grids, 7’ x 7’, would stabilize the sand Desert grass is watered by the morning dew, helps to retain water and may build up the water table. Also, growing corn is beneficial as the grazing animals could be penned and eat the corn stalks and husks. If they are free to roam, they will eat any living plant, and plants will never be given a chance to grow, and so grass areas will become desert.
What a mammoth task!!!
Africa does wonderful things to protect the environment
The problem in most of the world isn't a lack of water. The problem is poor water management. Everyone wants to use the water, but nobody shows even the slightest interest in harvesting water. It isn't required, spoken about, or put into action. Billions of gallons of rainwater fall every year, and it is channeled away as if it was unwanted garbage rather being captured for later use, or to percolate into the soil to replenish groundwater. Harvesting water isn't rocket science. It is ancient technology. Digging ponds, swales, Zai pits and other water harvesting techniques are restoring wastelands and desert areas around the world today, transforming them into green, productive lands, yet we do nothing and wonder where all our water went. We could change the world with a little shovel work, but instead we seem to be satisfied with our ignorance and laziness. We can become better land managers and prosper, or we can wither away and die. It is not fate. It is a choice.
If they would use adaptive rotational grazing, they could regreen huge areas of land. Allan Savory has been teaching the technique and he has been helping villages to keep year round water flow in villages across Africa.
can you use the old motor types for walls ?
The music is so intrusive
Sometimes it rains very heavily in the Sahara, causing flooding. It rains heavily because there is a heavy amount of humidity. Practicing condensation would be able to turn this humidity into water for crops and drinking water. There are many methods of condensation. It would be good to use this water for Groassis Waterboxxes and grow many trees in the desert.
New Subscriber. Keep the videos coming
Do cloud seading now launching
in ancient when they were supposedly less intelligent and able than us they created solutions for waterflows in ways we can only look at and marvel. and the funny thing is that we have yet to seriously involve ourselves in making things really work
How about putting top soils after bulldozing less expenses and quick effect.. You can plant immediately..
They need to introduce mangroves to the coast to encourage rain. Likely there were native mangroves there before but were removed. As the land near the coast is reclaimed better agricultural methods would increase the green areas.
Vpconventional ag needs to be dropped. Polycropping with zero bare earth, zero synthetic chemical inputs; using livestock to manage weeds, pests and fertility; and opting for biome-appropriate, food-producing trees, vines and shrubs that alternate with perennials, pasture and annuals.
Rebuilding soil carbon and groundwater is important. Adding rainwater harvesting earthworks as well as reusing greywater will add resiliency...
We need educational video about the climate crisis in Central America so that people in the U.S. understand where and why these migrants at the southern border are coming from.
They aren’t coming in because of climate! 🤣🤣🤣
@@FloridaGirl- it's pretty hard to survive when your crops fail and that's all you've got.
@@1Onionpeeler Central American countries have been plagued by democratic backsliding, corruption, gang activity, drug trafficking and violence. Weak political institutions and poor governance have led to shoddy public services, limited social mobility and rampant insecurity. Central America suffers from some of the highest homicide rates in the world, with all seven countries among the global top 20 in 2021 . Honduras comes in a dismal second. In addition to each of the individual tragedies, the violence also reduces confidence in politicians and in democracy, decreases interpersonal trust, encourages migration and frustrates development. you could go on and on. But that’s just a start. And has absolutely nothing to do with climate change..
How much desalinated water would it take to restore and maintain that Moroccan lake?
“The Bedouin is not the son of the desert but its father.”
Great green wall is definitely good, but the local people must be aware of the benefits and work on improving the environment by themselves - like eg in China or India or even some parts in Africa, where there are also issues with desertation and drought, but people build water catchment structures and terraces to grow vegetables and grains. From this document, these people had chosen the way of wild animals - use local resources and when there are not any move to another place, rather than the sustainable and responsible way I've described before.
Where can I get a "LA GRANDE MURAILLE VERTE" T-shirt?
I have a question, can desert animals and plants survive in the forest? I know desert greening is good for the environment but how about the desert wildlife? Can the desert animals and plants adapt to a forest that was once a barren desert?
Yes desert wildlife don't live without a little bit of water and trees
The desert ecosystem, given enough time, will become a forest, like in mexico or arizona. We are able to speed up that process. The desert animals often do better in a more rich ecosystem, life creates more life.
Desert will not turn to tropical forest but to sahel or savanna
There is still plenty of desert land for them to survive. There is not much wildlife in the desert anyway.
👍👏❤
This look like Mars
For those interested, it was a Heinrich Event 6,000 YBP (the China Event) that destroyed the greenest green Sahara in the geological record. It was a massive solar discharge that went east to west.
How does a solar flare go against the rotation of the earth and sun?
@@TaylorLiam87 There's only so much detail I've looked into. However, electric currents induce a magnetic field. The moon, for instance, is phase-locked to earth. The same phenomenon was the case when proto-Saturn in its brown dwarf phase was our first sun before capture by our present sun. Also, ancient records speak of a day when the sun stood still. The Thunderbolts Project is where I started studying this almost 15 years ago. There's just no adequate short answer, though if your hungry for knowledge, it's out there.
it was a typical event, over the last 2000000 years, in an interglacial period. solar discharge was not and could not be the cause of the recent, geologically speaking, desertification of the Sahara.
Using the deserts sand, make thousands of glass blocks and make a long glass tunnel from ocean islands. Then build a Chinese style maglev train to move large quantities of water islands at hyper speeds. Then build large glass block green houses for growing food
We cannot forget, that the Amazon in South America needs the sand from the desert of Africa to thrive!
Too much sand here, but there are several places in the world where lack of sand is a problem. More sand is needed for cement in building,, for seacoast to prevent erosion and sea incursion. Is it practical to transport some of this sand to places where it's needed?
Just need things vining up from the date palms starts, the point is to bring the water up from the previous water table. ❤
Should be more ponds etc.
Hmm..I'd use a mix of edible and commercial species native to the region as its core and add in exotics from similar climates to add value. Things like baobab, african olives, palms, pistachios, macadamia, pink guavas, banana/plantains, pineapples, pomegranate, tigernuts, groundnuts, grapes and watermelon for example. All 7 layers of the forest would have to incorporated for success though. Canopy, understory, shrub, herb, root, ground cover and vine. Diversity is key.
Ban goats in dessert land
I find it funny how they are trying to regreen the Sahara without even implementing any water harvesting techniques. permaculture teaches a number of different ways. You can do it many different ways. But i dont see this project working without doing something. It just like those people who tapped into the ground water to water those trees. And it went empty. Obviously if your going to use the water you have to set up water harvesting techniques to recharge the ground water.
What about the sea water
They need to modernize underground water tunnel from atlas mountains. If they want to save oasis.
They need to Lay pipes in those tunnels and wells, won't reqire tonn of maintenance like centuries old system. (Though it was good design for that time)
Hai sir 👍👍👍👍
It's never too late! Take instruction from the Loess Plateau and water structures created in India.
Herding is the main cause of desertification and destruction of vegetation and trees.
That is 100% true.
🥰🥰🥰🥰🥰🥰
There were hope nationals Countries as well.
My friends what about
Bamboo or willow three
and you will find in you- tube. It mite work!
What kind of mushrooms
I’ve noticed a lot of the plants and trees aren’t native and there hoping farms will help.
Like plant native stuff from seed if needed dig big holes everywhere deep and wide and then cover the hole in a foot of dead grass or wood chips from city trees that were trimmed.
Or move and let the desert takeover which we all know won’t happen
If the people of the world not drying their wealth into the into the arm industry for defensive reason and war and conflict state they make such projects and make the world as heaven
And Mars is a better more worthwhile challenge?
The compost value has to be a good thing from the cactus
11:30 - clearly, not human-made weather changes, but predatory, bad farming practices killed that place, as many others.
23:56 I can only guess, my guess is herders' goats and cows cleared that area to the naked rock in the recent past.
Narrating Afrika is always good 🌍 north Afrikan are origin from Middle East they invade us long back
You do know that you can just dig the lake deeper and make land dug in a line from the bottom to top and build small channel's allowing the water to flow slower and plant some grass in that vicinity around lake and few tree's to start strengthening the ground around it
I think the local people and professional ecologists and water engineers know far more about the local resources than either you or I do. Just watch, listen and learn.
@@helenamcginty4920 No the problem is that people want to control outcome instead of letting nature take it's time to regenerate
@@helenamcginty4920 Certainly most local people have little idea. First, they are a big source of desertification:
- 11:30 - by using deep groundwater they had a few years of extra crops, but finally, they killed all the trees and greenery within less than 30 years).
- many areas are destroyed due to overgrazing - caused by overpopulation - 1000% growth of population within a century is huge, isn't it?
I agree that the problem is very difficult. "watch, listen and learn" 👍
these people are their own worst enemies
90% of the planted trees died. Why? Because there was no community sense of ownership.
I would like to correct an information, the Sahara doesn't and did never extend until the mediterranean sea. Fun fact, the northern part of africa is a huge hospitable green land with vegetation, trees, mountains, snow, rain during winter, the same weather as the southern Europe.
TODO LO QUE EL SER HUMANO HAGA PARA SALVAR LA NATURALEZA LO HARÁ PARA SALVARSE A SÍ MISMO.
better water collection and deep water wells
"Today's youth don't want a life of hardships and low wages. "...but such a life sounds oh so rewarding. Did the narrator even know what he said as he was reading the script?
"You must suffer your entire life and expect little from your toil so we can preserve our way of life."...hey dad! Did it ever occur to you that maybe our way of life ISN'T worth preserving? That maybe our way of life sucks ass!?!? Is there something to be said for tradition if the tradition is painful, doesn't yield anything positive or beneficial? Hey dad, remember this little chestnut? If everybody was jumping off a bridge, would you do the same?
If they got the plants in the ground to seed or sucker and multiply it would speed up the process
Great documentary.
(When he took a bite out of the Barbary Fig, at 23:22 , that was not the fruit.
Wikipedia has a page about that cactus at en.wikipedia.org/wiki/Opuntia_ficus-indica )
The end of humans is closer than we think
If forests create rain, why not build one around lake Chad and let the two complement each other?
Because everyone won'ts every one else to do it .iv started growing fruiting trees in pots and will slowly plant a small peice of land here in Australia everyone calls me mad.geoff Lawton has good vids on planting
We need a machine that can generate rains for deserts
I can see lots of places to grow trees if someone is willing to live there
Why would someone choose livestock farming in an arid zone? is it even normal?
well, they have to eat somehow. They cant grow agricultural crops. Also, it has always been their profession since biblical times.
@@udraj914 "They can't grow agricultural crops" That's not what I saw in this documentary. In biblical times the dune was probably in the ocean bed today it's in their village so the environment has evolved so they have to adapt. Instead of grassing their livestock with the few remaining vegetable life in their area, they must reforest their environment.
Born free movie the man showed how the desert progressed with goat herds over a fourty year period He was murdered by goat herders as he tried to keep them out of the lion reserve.
Use bitumen to form lakes all over the desert.
Urbanisation and population explosion and then illegal boats to Europe where these people due to cultural divergences find it very difficult to integrate and fit in. Help people to stay in their ancestral, beloved desert areas and educate them to thrive there.
You need to replant and reforest it
weird immigration take shoehorned in at the end
These greening successes are probably only being successful because of increases in atmospheric CO2. The higher the CO2 the less water plants need in order to thrive.
Now we just need to stop killing one another...
Why aren't half moon ditches interspersed to capture water during the rainy season to recharge the water table? The technology is there in other areas of the green wall, why isn't it used here? Permaculture would mitigate all these issues.
Why isn't this sand harvested to mitigate the global need for sand, as well as the wind harvested for power?
Better to trade off a desert for preerie and forests