Evidence for climate change proves it’s happening

• What is the main topic of the study material?

  Evidence for climate change
• What does ocean acidification refer to?

  Increase in ocean acidity due to CO2
• How does increased carbon dioxide affect ocean acidity?

  It increases the amount of dissolved CO2
• What happens to water as CO2 levels rise?

  Water becomes more acidic
• How can ocean acidity be measured?

  Direct measurement of ocean acidity
• What historical method is used to assess past ocean acidity?

  Comparing thickness of seashell samples
• What are seashells primarily made of?

  Calcium carbonate
• Why do thinner seashells suggest more acidity?

  Thinner shells indicate higher acid levels
• By how much has ocean acidity increased since the Industrial Revolution?

  About 30%
• What is the cause of increased ocean acidity?

  Human emissions of carbon dioxide
• How does climate change relate to ocean acidity?

  Climate change increases CO2 emissions
• What is the general trend of climate change over recent decades?

  It has been changing more quickly
• How long can natural climate change occur?

  Over thousands of years
• What is the implication of increased carbon dioxide in the atmosphere?

  More carbon dioxide is absorbed by oceans
• What is the consequence of more CO2 being absorbed by oceans?

  Increased ocean acidity
• How does human activity contribute to ocean acidification?

  By emitting more carbon dioxide
• What is the overall effect of climate change on ocean ecosystems?

  It disrupts marine life and habitats
• What is the relationship between climate change and ocean temperatures?

  Climate change increases ocean temperatures
• How does ocean acidification impact marine organisms?

  It affects their ability to form shells
• What is a significant consequence of increased ocean acidity?

  Threat to marine biodiversity
• How does ocean acidification affect coral reefs?

  It weakens coral structures
• What is the long-term impact of climate change on ocean ecosystems?

  It leads to ecosystem degradation
• What is the primary driver of recent climate change?

  Human activities
• What is the significance of monitoring ocean acidity?

  To understand climate change impacts
• How does ocean acidification relate to global warming?

  Both are caused by increased CO2
• What is the effect of increased CO2 on marine life?

  It poses risks to survival
• Why is it important to address climate change?

  To protect marine ecosystems
• What can be done to mitigate ocean acidification?

  Reduce carbon emissions globally
• What is the overall trend of climate change in recent decades?

  It has accelerated significantly
• How does climate change affect weather patterns?

  It leads to more extreme weather
• What is the relationship between ocean acidification and marine biodiversity?

  Ocean acidification threatens marine biodiversity
• What is the primary cause of ocean acidification?

  Increased carbon dioxide levels
• What is the impact of ocean acidification on fish populations?

  It disrupts their reproductive systems
• How does ocean acidification affect the food web?

  It disrupts the base of the food web
• What is the significance of the Industrial Revolution in climate change?

  It marked increased carbon emissions
• Why is it crucial to monitor climate change?

  To implement effective environmental policies
• What role do seashells play in understanding ocean acidity?

  They provide historical data on acidity
• What is the effect of climate change on polar regions?

  It leads to ice melting
• How does climate change impact sea levels?

  It causes sea levels to rise
• What is the long-term consequence of rising sea levels?

  Increased flooding in coastal areas