A really interesting unit, you learn a lot about how climate change actually occurs, the past trends from millions of years ago, learn about current factors influencing it and what is being done to help change it. There are 2 lectures a week and a quiz every 2 weeks on the last 4 lectures which are pretty straightforward if you watched the lectures and took good notes. There are occasional workshops which are easy marks if you apply yourself. There is an essay that is worth 30% of the grade. The exam is worth 40% but you have to pass that to pass the unit which sucks and the reason I took a star off, but the exam was pretty straightforward, it was open book and online so if you have your notes prepared you'll be fine.