The Dangers of Frequent Plankton Blooms

The video discusses the looming threat of water scarcity in cities like Cape Town and Chennai, and questions if Singapore might face similar challenges. It explains Singapore's four water sources and how climate change could disrupt them, particularly through increased droughts and plankton blooms. The video highlights the energy-intensive nature of desalination and recycling water, and the potential impact of climate change on these processes. It also explores the harmful effects of plankton blooms on marine life and local farming, emphasizing the need for sustainable water management in the face of rising temperatures.

Which of the following is NOT one of Singapore's four main water sources?

• Recycled water (New Water)

• Imported water from Malaysia

• Desalinated seawater

• Groundwater extraction

What is a major drawback of relying on New Water and desalinated water?

• They require significantly more energy to produce

• They are dependent on rainfall

• They are less reliable during droughts

• They are not affected by climate change

How does climate change potentially affect the efficiency of desalination plants?

• By increasing the amount of plankton in the ocean

• By increasing the energy required for desalination

• By decreasing the temperature of seawater

• By reducing the amount of seawater available

What was a significant consequence of the 2015 algal bloom in the Johor Straits?

• Increased water prices

• Closure of desalination plants

• Massive fish deaths

• Improved water quality

What is a potential effect of rising temperatures on plankton blooms?

• They will grow faster and more frequently

• They will become less frequent

• They will only affect freshwater systems

• They will have no impact on marine life