The Horse 2020/21

Environment & Technology

Causes and effects of water erosion

The three main forces that cause erosion are water, wind, and ice. Water is the main cause of erosion on Earth. Although water may not seem powerful at first, it is one of the most powerful forces on the planet.
 
You have natural drivers, such as a wildfire or climate change or land cover changes, or human drivers, such as Catchment management or land and water management.
 
Water erosion is caused by the detachment and transport of soil by rainfall, runoff, melting snow or ice, and irrigation. Excessive erosion can threaten the production of agricultural and forest products. Erosion may also impact water conveyance and storage structures, and contribute to pollution from land surfaces.
 

Impacts of erosion
  • reduced ability of the soil to store water and nutrients.
  • exposure of subsoil, which often has poor physical and chemical properties.
  • higher rates of runoff, shedding water and nutrients otherwise used for crop growth.
  • loss of newly planted crops.
  • deposits of silt in low-lying areas.

Is water the main cause of erotion?

 

Livia 

EDX

Science Direct

My ARA in Oetwil am See

For my waste water, the ARA Esslingen und Oetwil am See is responsible. It covers 4848 people from Oetwil am See and 8888 people from Esslingen (2020). However, the size of the sewer is for 17,000 inhabitants. The ARA is in Esslingen 8133 and was founded in 1965.

The wastewater is collected via urban drainage and flows into the main sewer system. Due to the topographical location of our communities, part of the wastewater must be conveyed to the main collection sewer with the help of nine pumping stations.

Because the wastewater treatment plant cannot receive an unlimited amount of wastewater (210l/s), the municipality of Egg and Oetwil am See also have four additional rainwater retention basins at their disposal in case of large rainfalls, which can be used to collect the first wastewater accumulation.

The cleaning efficiency is 98%.

ARA-Esslingen

Livia

geothermal heat pump - heat source

Our heating source is the geothermal heat pump. Geothermal heat pumps, sometimes referred to as GeoExchange, earth-coupled, ground-source, or water-source heat pumps, have been in use since the late 1940s. They use the constant temperature of the earth as the exchange medium instead of the outside air temperature. 

As with any heat pump, geothermal and water-source heat pumps are able to heat, cool, and, if so equipped, supply the house with hot water. Some models of geothermal systems are available with two-speed compressors and variable fans for more comfort and energy savings. Relative to air-source heat pumps, they are quieter, last longer, need little maintenance, and do not depend on the temperature of the outside air.

My father told me, that for our house they drilled down 102 meters in the ground, which is very impressing.

Livia

Energy carrier - Solar Thermal

Thermal energy is technically heat. With thermal heat we can boil liquids and with the steam you can drive a turbine. The average daily radiation power reaching the earth's surface (based on 24 hours) is approximately 165 W/m² worldwide. The use of solar thermal energy was already practised in ancient Egypt, Mesopotamia and in the early South American advanced civilisations through the architecture of their buildings.

It's an ineffective type of energy production, since it only works with steam and not directly with water. Also, a lot of vapor is produced, which isn't able to turn a turbine.

Examples are solar plants or water heating roofs.

What is water?

a: a liquid

b: a solid 

c: a gas

Where does nearly all off the energy in the atmosphere come from?

Wikipedia

Ulza, Lukas, Livia

Survey on climate-changing measures - Reflection

At the beginning we had some difficulties to decide which topic we're going to choose. However, we decided on the topic of climate-changing measures because it was the only thing that we all agreed on.

Unfortunately, no one wanted to coorperate with us. But we also think, that it would have been much more complicated to do a collaboration, because our project is based on a survey.

We didn't have any struggles to decide who's going to do what. It was also very interesting to do such a project in English. 

A bit sad was, that we didn't get as much answers from our survey as we expected to. Even though we spread it in many different ways.

Although everything worked out, we couldn't get much knowledge out of our project and would choose something different next time.

But in the end, we're happy with our final result.

Lukas, Julian, Livia

Collaboration - Survey on climate-changing measures

Hello everyone

We're looking for a collaboration partner for our project about climate-changing measures.

In our project we want to show, what people think about climate-changing measures, what they already do to implement them and even more questions. For that we made a survey. The link will be posted soon. Another big question for our project is to find out where costs would arise, if we don't do anything for our climate. We hope that an expert can answer us this specific question.

More information about our project is posted on the Horse.

A cooperation to see a different point of view would be very interesting.

Lukas, Julian and Livia

Our experience so far - survey on climate-changing measures

What to do to stop climate change? Even with little things we can help our environment a lot. That is why we would like to change people's mindset with our project in order to help the earth. To start, we decided to take a survey to get people's opinions and to find out what they already know and do for our environment. We are going to create a German and English version of the survey, which we will post soon. 

Julian, Lukas and Livia

Questions for our survey - Survey on climate-changing measures

We are going to create a survey in order to find out about peoples opinions and to find out what they already know and do for our environment. Our goal is to show people, how many of them already do something for the earth.

 

Link for the german survey: https://ee.humanitarianresponse.info/x/JgQ8WMUA

 

These are our questions:

1. Von welchen Klimawirksamen Massnahmen wissen Sie bereits?

2. Welche Massnahmen setzen Sie bereits um?

3. Wie viel von einer Skala von 1-10 machen Sie für unser Klima?

 
 Wie viel machen Sie für das Klima 1-2 
Nichts
3-4
sehr wenig
5-6
ein wenig
7-8
viel
9-10
sehr viel

4. Wieso setzen Sie gewisse Massnahmen nicht um?

5. Was braucht es für Sie, um diese Massnahmen umzusetzen?

6. Wo denken Sie, fallen die meisten Kosten an, wenn man sich nicht für das Klima einsetzt?

7. Was halten Sie von "Grünen Zonen", die nur mit Elektro-Autos befahrbar sind?

Bitte angeben:

Der letzte Schwachsinn
Habe schon bessere Ideen gehört
Die Idee ist gut, hat aber ein paar Schwachstellen
Eine gute Idee
Ich finde die Idee wunderbar 

8. Wie würden Sie reagieren, wenn Ihre Strasse ab sofort nur noch mit Elektroautos befahrbar wäre?

 

9. Wie stellen Sie sich die Stadt der Zukunft vor?

10. Zählen Sie 5 Sachen auf, welche Sie bei einer Stadt der Zukunft voraussetzen.

 

Lukas, Julian and Livia

Concept, time plan - survey on climate-changing measures

I Julian, Lukas and Livia

II How can you get people to implement climate-chaning measures?

- What do people already know about climate-changing measures?
- Where are the main costs if you do nothing for the climate?
- Why don't people implement climate-changing measures?

III Survey on climate-changing measures

Survey in german/english for every age group.

Possible questions:

- Which measures do you already know of?
- What do you already do for our climate?
- How much do you do for the climate?
- Why don't you implement certain measures? (lack of information, lack of money, lack of motivation etc.)
- What would it take you to implement those measures?
- Where do you think are main costs of doing nothing about the climate change?

Product: results of our survey + seperate post

IV We're going to create a survey on an online tool.

For the answer to the question about the costs which would arise if we do nothing, we want to ask a specialist. Who this is going to be isn't certain yet.

V Isn't certain yet.

VI It should be well structured with clear headings and texts. It should also have enough pictures for better understanding. The results of the survey and the calculations should be visible on our post.

 

 

 

 

Survey on climate-changing measures

How can you get people to implement climate-changing measures?

 

What is our goal?

We would like to get people to implement climate-changing measures. We want to know, why some people do not implement them and what they'd need to change their opinion. Is lack of information? Financial reasons? Do we need laws? It would also be interesting to know where the costs arise above all from doing nothing about the climate. It would be really nice if we could find someone who could answer this question.More...