Climate Change and Greenhouse Gases

The video tutorial covers the IB Biology 4.4 curriculum on global warming and climate change. It explains the concept of greenhouse gases, their role in the greenhouse effect, and the impact of human activities on increasing greenhouse gas concentrations. Historical data is used to show the correlation between greenhouse gases and global temperatures, highlighting the significant changes since the Industrial Revolution. The video also discusses the effects of climate change on aquatic ecosystems, such as ocean acidification and threats to biodiversity. Finally, it addresses the ongoing debate about climate change, presenting scientific data to counter common arguments against human-caused climate change.

What is the main focus of the IB Biology 4.4 curriculum?

• The study of plant biology

• The impact of technology on health

• Global warming and climate change

• The history of the Industrial Revolution

Which of the following is a characteristic of greenhouse gases?

• They cool down the Earth's surface

• They are only produced by human activities

• They absorb heat and trap it in the atmosphere

• They reflect sunlight away from Earth

Why does carbon dioxide have a larger total effect on global warming compared to methane?

• It is a natural greenhouse gas

• It is more reactive with other gases

• It is present in higher concentrations

• It absorbs more long wave radiation

What is the term used to describe the effect of a greenhouse gas on global warming?

• Atmospheric impact factor

• Global warming potential

• Greenhouse effect

• Global cooling potential

What significant event marked the beginning of increased greenhouse gas emissions?

• The discovery of electricity

• The Industrial Revolution

• The invention of the automobile

• The digital age

What is the relationship between greenhouse gases and global temperatures?

• Greenhouse gases only affect local climates

• There is no relationship

• Higher greenhouse gases lead to lower temperatures

• Higher greenhouse gases lead to higher temperatures

How does increased atmospheric CO2 affect marine ecosystems?

• It increases the oxygen levels in water

• It causes ocean acidification

• It decreases water temperatures

• It promotes the growth of coral reefs

What is the consequence of ocean acidification on marine life?

• Enhanced coral growth

• Increased biodiversity

• Formation of stronger shells

• Difficulty in forming exoskeletons

What is a common argument against human-caused climate change?

• Climate change is a new phenomenon

• Greenhouse gases do not affect temperatures

• The Earth has never experienced warming before

• Climate change is a natural cycle

What evidence supports the claim that humans contribute to climate change?

• The stable levels of greenhouse gases

• The unprecedented rate of temperature change

• The natural cycles of the Earth

• The decrease in global temperatures