B2 - Can sea water desalination save the world? - Listening

Can sea desalination

save the world?

Warm-Up

Do you think water scarcity is a significant issue in the world today? Why or why not?What are some sustainable practices you can adopt to conserve water in your daily life?

In one drop of water are found all the secrets of all the oceans.

Kahlil Gibran

Your Proverb for Today

"Still waters run deep."

VIDEO

Let's watch a video to find out more.Remember to turn off the music in the background for better quality of the video.

TRUE or FALSE

Seawater desalination is the sole solution to water scarcity and can fully meet global water demands.

TRUE or FALSE

Reverse osmosis is the older and less efficient method of desalination compared to thermal desalination.

TRUE or FALSE

The main concerns about desalination are related to the high cost and the negative environmental impacts of brine disposal.

TRUE or FALSE

The proposed Huntington Beach seawater desalination plant follows a public/private partnership model, where the plant is entirely financed by the public water agency.

TRUE or FALSE

Brackish water desalination requires less energy than seawater desalination due to the lower salt concentration, making it a more environmentally friendly option.

VOCABULARY

charged particles

gallon

deficit

UAE

seawater desalination

environmental impacts

projection

pressurize

thermal desalination

water-stressed areas

marine environment

augment supply

pursue alternatives

developing countries

reverse osmosis

vast majority of

The University of California, Los Angeles (UCLA)

lead contamination

tremendous

brackish

private partnership

bond

folks

ratepayer

energy-intensive

breakthrough in the technology

long-term

impediment

abundant

transportation

brine

fixed-price

the Western Hemisphere

water purchase agreement

hyper saline

housing

public partnership

investment

efficiency

arid climate

environmental protection

panacea

drawbacks

waste water

advocate for a technology

freshwater

portfolio

a fraction of

water-scarce worlds

hedge

hedge your risks

reliability

scarcity

cure-all

wreck

per person basis

energy requirements

havoc

vital

disposal

Your Idiom for Today

In deep water

Your Idiom for Today

Keep one's head above water

Let's check what you remember...

What are the two main types of desalination mentioned in the video, and how do they differ in their process?

Let's check what you remember...

According to the video, what are the three main concerns regarding desalination?

Let's check what you remember...

Can you describe the concept of a public/private partnership in the context of desalination plants? How does it work, and what are its advantages?

Let's check what you remember...

What is the potential environmental impact of the brine produced as a byproduct of desalination? How is it currently being disposed of, and what are the concerns related to its disposal?

Let's check what you remember...

The video mentions Israel as an example of a country that has invested in seawater desalination. What other measures did Israel take to address water scarcity, and why were these measures important before building desalination plants?

Let's check what you remember...

Can you explain why some argue that desalination should be used as part of a portfolio of water solutions rather than a standalone solution to water scarcity?

Let's check what you remember...

Reflecting on the information in the video, what are some of the factors that may influence the role of desalination in addressing water scarcity in the future? How might climate change impact this balance?

"When the well is dry, we learn the worth of water."

Proverb

Discussion Time

After watching the video, what are your thoughts on desalination as a solution to water scarcity? Do you believe it should be implemented more widely? Why or why not?

Discussion Time

In the video, it was mentioned that desalination has drawbacks, such as energy consumption and environmental impacts. Can you think of any alternative solutions to address water scarcity in a more sustainable way?

Discussion Time

Do you think desalination is a good option for your region or country, considering its unique water needs and environmental factors? Why or why not?

THANK YOU

Before building desalination plants, Israel invested in efficiency measures to reduce water waste. This included using water more efficiently on a per-person basis. These measures were important because they delayed the need for large desalination plants and allowed Israel to build smaller, more cost-effective plants.

To manage to survive in a difficult situation.

In a public/private partnership for desalination plants, the plant is 100 percent privately financed, and the private company enters into a long-term, fixed-price water purchase agreement with the public water agency. The private company recovers its investment over time through the sale of water. The advantage of this partnership is that it allows for the investment of private capital while still protecting the ratepayers.

Some argue that desalination should be part of a portfolio of water solutions because it is an expensive and energy-intensive process. Using a combination of various techniques can be more cost-effective and have less environmental impact.

więź przeszkoda obfity półkula zachodnia suchy klimat ludzie przełom w technologii transport mieszkalnictwo partnerstwo publiczne partnerstwo prywatne długoterminowy stała cena umowa zakupu wody inwestycja podatnik energochłonny solanka hiper sól fizjologiczna efektywność

bond impediment abundant the Western Hemisphere arid climate folks breakthrough in the technology transportation housing public partnership private partnership long-term fixed-price water purchase agreement investment ratepayer energy-intensive brine hyper saline efficiency

Factors that may influence the role of desalination in the future include advancements in technology, changes in energy costs, and increasing water demand due to population growth. Climate change can impact desalination by affecting the availability and quality of seawater, as well as the energy resources required for the desalination process.

The amount of energy required, the cost, and its environmental impacts.

The brine produced as a byproduct of desalination has a much higher salt concentration than regular seawater and can potentially harm marine life if not disposed of properly. Currently, most brine is emptied back into the ocean, but there are concerns that it could sink to the seafloor and negatively impact marine plants and animals.

galon projekcja obszary dotknięte niedoborem wody kraje rozwijające się zanieczyszczenie ołowiem naładowane cząstki odsalanie wody morskiej odsalanie termiczne odwrócona osmoza Uniwersytet Kalifornijski w Los Angeles (UCLA) deficyt zwiększać ciśnienie zwiększyć podaż zdecydowana większość słonawy ZJEDNOCZONE EMIRATY ARABSKIE wpływ na środowisko środowisko morskie poszukiwanie alternatyw ogromny

gallon projection water-stressed areas developing countries lead contamination charged particles seawater desalination thermal desalination reverse osmosis The University of California, Los Angeles (UCLA) deficit pressurize augment supply vast majority of brackish UAE environmental impacts marine environment pursue alternatives tremendous

Quiet or calm people may have great depth or complexity of character.

We appreciate the value of something when it's no longer available.

waste water freshwater reliability wreck havoc environmental protection portfolio hedge scarcity disposal drawbacks advocate for a technology water-scarce worlds per person basis energy requirements panacea a fraction of hedge your risks cure-all vital(essential)

ścieki woda słodka niezawodność wrak spustoszenie ochrona środowiska portfolio zabezpieczenie niedobór utylizacja wady zwolennik technologii miejsca na ziemi z niedoborem wody na osobę zapotrzebowanie na energię panaceum ułamek zabezpiecz swoje ryzyko lekarstwo na wszystko niezbędny

To be in a difficult or challenging situation.

Thermal desalination and reverse osmosis. Thermal desalination involves boiling water and capturing the steam to produce freshwater. Reverse osmosis, on the other hand, pressurizes the water and forces it through a membrane to separate salt from freshwater.