Climate Change Lecture Notes

This set of flashcards covers key concepts related to climate change and global warming discussed in the lecture notes.

What is climate?

Climate is the average weather conditions in a given area.

What does global warming refer to?

Global warming, sometimes called global climate change, refers to the increase in Earth's average temperature due to human activities.

Is the earth currently warming?

Yes, evidence shows that the earth is warming with overlapping data sets.

What was notable about the year 2024?

2024 was the warmest year on record.

What is the greenhouse effect?

The greenhouse effect is the process by which certain gases trap heat in the atmosphere, preventing it from escaping into space.

Who first noted the warming properties of CO2?

Eunice Foote first noted the warming properties of CO2 in 1856.

What is radiative forcing?

Radiative forcing is the change in the energy balance of the earth from preindustrial times until the present.

Why are greenhouse gas levels increasing?

Greenhouse gas levels are increasing primarily due to disruptions in the carbon cycle.

What significant trends are observed in the Arctic?

The Arctic is warming rapidly and is experiencing a decline in sea ice extent.

What does the term carbon neutrality mean?

Carbon neutrality refers to balancing the emissions of carbon dioxide with its removal from the atmosphere.

What are two main actions to combat global warming?

Reduce deforestation and decrease the use of fossil fuels.

What was the conclusion of the 5th report of the IPCC?

The report concluded with 95% confidence that human activities are responsible for current climate change.

What is a tipping point in the context of climate change?

A tipping point is a threshold that, when crossed, leads to significant and potentially irreversible changes in the climate system.