Understanding Climate Change

What does an El Niño do?

• El Niño has no effect on global weather patterns.

• El Niño only affects local weather in South America.

• El Niño causes changes in weather patterns globally, including increased rainfall and droughts.

• El Niño causes a permanent increase in ocean temperatures.

When was the last ice age?

• Approximately 30,000 to 15,000 years ago.

• Around 20,000 to 5,000 years ago.

• Approximately 26,500 to 11,700 years ago.

• From 50,000 to 25,000 years ago.

What is causing our climate to warm the most?

• Increased solar radiation from the sun.

• Greenhouse gas emissions from human activities.

• Natural variations in the Earth's orbit.

• Volcanic eruptions releasing ash into the atmosphere.

Give two examples of fossil fuels.

• Coal, Natural Gas

• Hydroelectricity

• Wind Power

• Solar Energy

Carbon dioxide in the atmosphere has increased by what %?

• 100%

• 50%

• 75%

• 25%

How much has the world warmed by in the last century?

• 1.1 degrees Celsius

• 1.8 degrees Celsius

• 0.5 degrees Celsius

• 2.3 degrees Celsius

What is the Greenhouse Effect?

• The Greenhouse Effect is caused by the depletion of ozone in the stratosphere.

• The Greenhouse Effect refers to the increase in solar radiation reaching the Earth.

• The Greenhouse Effect is the warming of Earth's surface due to the trapping of heat by greenhouse gases in the atmosphere.

• The Greenhouse Effect is the cooling of Earth's surface due to the release of heat into space.

Name a gas that contributes to global warming.

• Carbon dioxide

• Helium

• Oxygen

• Nitrogen

What are the main effects of global warming?

• The main effects of global warming include rising sea levels, extreme weather events, loss of biodiversity, and changes in agricultural productivity.

• Increased ice coverage in polar regions

• Decreased ocean acidity

• More stable weather patterns

How do fossil fuels contribute to climate change?

• Fossil fuels contribute to climate change by releasing greenhouse gases like CO2 when burned, which trap heat in the atmosphere.

• Fossil fuels are primarily used for renewable energy production.

• Fossil fuels have no impact on climate change whatsoever.

• Fossil fuels cool the atmosphere by reflecting sunlight.