NASA | Brazil’s Extreme Drought Seen From Space

The video discusses Brazil's ongoing droughts, monitored by NASA's Grace satellites since 2002. It highlights changes in water levels, with significant losses in eastern Brazil affecting major cities like Sao Paulo and Rio de Janeiro. Historical data shows alternating dry and wet periods, with current drought conditions exacerbated by low rainfall. Since 2012, eastern Brazil has lost an average of 28 trillion gallons of water annually, impacting electricity and water resources. The video emphasizes the importance of monitoring these changes for future resource management.

What technology has been used to monitor changes in Brazil's water levels since 2002?

• NASA's Grace satellites

• Weather balloons

• Groundwater sensors

• Rain gauges

Which colors in the data visualization indicate areas with water losses?

• Red and orange

• Blue and purple

• Black and white

• Green and yellow

What has been a significant factor contributing to the dry conditions in eastern Brazil?

• Deforestation

• Urban expansion

• Lack of rainfall

• Increased industrial activity

Since 2012, how much water loss has eastern Brazil experienced on average per year?

• 75 trillion gallons

• 50 trillion gallons

• 28 trillion gallons

• 15 trillion gallons

What percentage of Brazil's electrical power supply is generated by its network of rivers feeding into reservoirs and dams?

• 90%

• 60%

• 50%

• 75%