How Did The Sahara's Climate Change?

The aim is to identify and associate landforms, rock types and soils to the natural environment and its plants and animals and also to investigate the history of the local environment, comprising human impacts over the last 50 years. The impact of human alterations to the environment includes increased soil erosion and changes in river flows.

While reading through the Document Based Question I found out that Desert’s can be identified by their past, present, and future. Desert’s have been around for a long time. “ Did not begin until the 7th century” (Doc 2). This shows that Desert’s have been a thing in society since the 7th century. Desert’s have been around for over millions of years. “ The arid Sahara may have existed at least 7 million years ago.” (Internet). This shows how long Desert’s truly have been around for. To recapitulate, Desert’s can be identified by their past details, present details, and future

Climate change has always been an ominous, impending thought in the back of my mind. Every day, I try to be more cognizant of my ecological footprint, a mindset which had spurred me into becoming more environmentally cautious over the years. The crux of the matter was undoubtedly discussed by Mr. Bardecki over the dramatic changes concerning the Colorado River. Our earth relies heavily on water as a source of life— from humanity's perspective alone, we use it for hydration, agriculture, and sanitation. That being said, it is equally as essential that we take care of our planet and water sources. It is said that "we're failing as stewards of God’s creation, but these changes we're seeing, that's not God punishing us -we're destroying ourselves." In full confidence, I agree with this statement; if we drive our planet and our resources into ruin, we have but ourselves to blame. We cannot let this be our legacy. The Colorado River, known as one of the most endangered rivers in the continental US, is being threatened by a drought, one brought by the rising changes in climate, and greenhouse gas emissions. I believe that the risk factor is increased because of direct human activity such as leisurely boating, agricultural irrigation, and the import/export business, which studies will prove to be a correct assumption. It is indisputable that humans largely take part in the latter, and so, with all of the warning signs in place and alarms ringing, we must act quickly.

It’s obvious landforms change over time due to natural things like the tectonic plates shifting and colliding together. But lately over the past 100 or so years they’ve changed more than ever. This process is becoming more quick, but still very slowly, and happening more rapidly. With the tectonic plates shifting more often than they did a hundred years ago things like mountains are receding in size due to landslides from erosion.

We changed the geography by, using the canals that were originally used to drain all of the marshlands against it’s original use to bring back the water. The effect of that was that all of the plants back and reeds that we needed to survive. This has caused the land to look like it’s beautiful original form. This is all a part of the plan that we like to call “Eden Again.” which changed the culture by Bringing back 40% of the Marshlands. We have also brought back the plants and reeds everyone in the area needs to survive. We are bringing back everything that we need to survive and it’s all going very well. We aren’t bringing just human life back to Eden, but also animals and plants. This is our plan mentioned earlier “Eden Again.” And at this pace we can get everything back to normal by 2035 and pass down this foundation for the next generation if we have to. We hope you see how important our organization is to bringing back the rich culture of the Marshlands. Please strongly consider donating to our cause and help us continue this great

To start with there has been quite bit of global climate change in the last 13,000; regardless of the fact that the most notable changes have been caused by anthropogenic factors, natural climate change would still have played a role in altering and shaping these environments, making them different than the ones conservationists are trying to recreate.

Finally, based on the Mr. Savory present on how to we fight the desertification and reverse climate change. He was focused on the global rangeland, about two third of the land had become desertification, he thinks that grazing animals should be management of the grassland, so the land would not get destroyed badly. He also mentions the seasonal grassland, if the grass dying out, it will be oxidation and release the carbon. We use fire to burn the grass in order to grow the grass in next season. But this is harmful, he thinks we can put the animals in the grassland, the way can prevent the fire and protect with the soil. Which is a good idea for that. When Mr. Savory came to the United Stated and saw the national park was becoming a desert,

The observation took place on Wednesday, February 22, 2017. I conducted my observation at Little School of the Desert, located in Twentynine Palms, CA. At this location I observed a 4 yr. old boy named Nicholas. Nicholas is 4 yrs. old.

Around 70,000 to 50,000 years ago, the climate changed and an ice age was developing. The climate was cooler and drier, the icecaps grew and sea levels dropped. In Africa, drought was causing grasslands that once held large herds of animals to turn into deserts. This would have caused animal and plant populations to crash, putting pressure on the humans there. This forced small groups of people to leave Africa in search of food, changing the course of humanity forever.

One hypothesis is that changes in the sun’s energy output would cause the climate to change since the sun is the fundamental source of energy that drives our climate system (NASA, nd.). Since the sun goes through the same life and death cycle as any star, as it uses its hydrogen fuel the sun will grow hotter and hotter each year. This gradual heating will melt all the ice and turn Earth into a scorching planet such as Venus (NASA, nd.)

My extended essay topic will be the climate change in Australia. The question I want to investigate is the impacts of climate change in Australia and the solutions of the climate change. Climate change is tested by an increased in temperatures, the concentration of haze and amounts of rainfall. Climate change is definitely relevant to the Australasia because Australia has one of the world’s largest global warming emissions rates. The climate change in Australia causes many problems due to the fossil fuel are burned. First of all, the climate change increases the frequency of extreme weather events, such as the spring of 2013 has been Australia’s warmest on record. The temperature for the season was 1.57°C above the 1961–1990 average. Humans

We know that a desert is much hotter than a grassland ecosystem. So since the temperature increased over thousands of years the albedo increased as well. If the climate was to change so dramatically in an extreme climate (ex. Grassland ecosystem to a desert) we can assume that the temperature increased at least slightly in other areas. Grassland ecosystems are warm but less warm than a desert climate. Prompt

Three summers ago, my friends and I had an idea to rent out a giant inflatable waterslide to spend the day playing on it. We called Jennifer Bubbles, the place that rents out waterslides, and picked the biggest one. It was this huge inflatable thing that was half a bounce house and half a waterslide. The next summer, we rented out the same one. It wasn’t until last summer, that we had a problem renting it out. We called Jennifer bubbles again and she told us that because of the drought, she was not allowed to rent to anyone because too much water was being used for it. My friends and I were pretty upset, but we ended up just throwing water balloons at each other that summer. I questioned how the drought had gotten so bad and discovered that climate change, also known as global warming, was the cause.

Desertification is defined by Scott E Spoolman and G. Miller in their book Living in the Environment as “the conversion of rangeland, rain-fed cropland, or irrigated cropland to desert-like land with a drop of agricultural activity of 10% or more”. To put this as simple as possible desertification is turning usable soil into desert. Dissertation is hard to observe but over time

Drought and advancing desertification is one impact of climate change which is often widely felt in Morocco along with other countries in Northwest Africa. This is especially damaging to the agricultural industry in Morocco. The most apparent changes stemming from climate change are increasing temperatures and reduced rainfall. Increasing population has put pressure on the slow growing agricultural industry which is having trouble meeting the demands of the county’s population. With about 3,400 kilometers of coastlines, Morocco is also vulnerable to sea level rise and most of it’s economic activity occurs near the coast. This shows that climate change is a real threat to agriculture, fishing, water supplies, tourism and the unique ecosystems of the country.