30 years: Macroeconomist
In the previous videos, Amit Kara explained how human behaviour is directly responsible for climate change and the need for government intervention to tackle the climate crisis. In this video he quantifies the link between human activity and emissions by building a simple scenario model known as Kaya identity.
In the previous videos, Amit Kara explained how human behaviour is directly responsible for climate change and the need for government intervention to tackle the climate crisis. In this video he quantifies the link between human activity and emissions by building a simple scenario model known as Kaya identity.
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13 mins 26 secs
The Kaya identity is a helpful tool that highlights some of the tradeoffs and challenges involved to achieve net zero. The Kaya identity shows that we will require a radical shift in the way we generate, and the way in which we use energy.
Key learning objectives:
Understand what needs to be adjusted to achieve a high-ambition scenario
Understand what is the Kaya identity
Identify what will happen in a low-ambition scenario, using the Kaya identity
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The identity is named after an academic, Yoichi Kaya, from the University of Tokyo. The Kaya identity is a neat tool that helps decompose the source of human or anthropogenic emissions. More specifically, the Kaya identity links total greenhouse gas emissions to population, energy efficiency and carbon emissions efficiency.
According to the scientists, net emissions will have to drop to 0 in the next 50 years to achieve global warming of less than 2°C and net emissions will have to fall to 0 in the next 30 years if we are to achieve less than 1.5°C warming.
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