Part 2
Henrique C. Martins
You must be aware that this class is based on the Climate Change Economics webinar available at https://www.aeaweb.org/webcasts/2020/climate-economics-part-1.
Today, we will discuss:
The idea here is to understand more about the effects of climate change problems, how to create sounding policies globally, and how to create a framework of thinking to tackle environmental issues.
We will not talk much about the S and the G today.
Main takeaways
Energy is critical for growth
Developing countries will grow and will consume more energy
Fossil fuels are expected to meet much of this growth
Fossil fuels are inexpensive
Fossil fuels are abundant
The main issue of discussion today is the Global Energy Challenge (we will understand what is that in a minute).
China grew a lot and one reason is inexpensive energy.
The main issue of discussion today is the Global Energy Challenge (we will understand what is that in a minute).
To really tackle E problems, we need to find ways to pursue three goals at the same time:
Access to inexpensive and reliable sources of energy.
How to manage the pollution that comes as the energy is used (so the quality of life does not worsen).
How to manage the CO2 emissions (i.e., Climate Change).
The Global Energy Challenge is how to balance these issues.
Pollution in SP has been higher than recommended for a while.
The traffic is intense everywhere.
Still, public transportation works but only to some extent.
To change that, we need energy. Energy is critical for growth Source
To change that, we need energy. Energy is critical for growth Source
There is a strong correlation between growth and energy consumption.
And there is several parts in the world not consuming much energy. Perhaps most striking, notice the number of countries consuming not much energy. They are mainly developing countries.
If we believe they will grow more rapidly in the future, they will consume more energy.
There is no evidence in data of countries getting rich without consuming energy.
The idea of decoupling energy consumption from growth is actually a thing in some countries.
Still, poor countries are not doing a good job in that area.
The idea of decoupling energy consumption from growth is actually a thing. Source
Demand will grow more rapidly in developing countries, where most of the world’s population lives.
Demand will grow more rapidly in developing countries, especially in east Asia.Source
Developing will grow more than developed countries.
Developing will grow more than developed countries.
In fact, there are very low levels of energy consumption in several parts of the world where many billions of people actually live.
And they are expected to consume more if they want to grow.
To say that they will not consume more is the same to say that they:
Fossil fuels are expected to meet much of this growth.
Fossil fuels are inexpensive.
Source. Around 60 BRL cents, around 10-12 cents USD.
So, if you think that developing countries will grow without using fossil fuels…
…you believe they will pay 2-3 times more for energy.
Fossil fuels will be around for a while. Source.
Fossil fuels will be around for a while. We keep finding new reserves of fossil fuel.
The takeaway is: we have more oil and coal than needed.
And if you think that tackling the transportation problem is enough, it is not!
So the million dollar question is:
How can we, as a society, tackle the environmental problem in a way that is fair (across countries)?
Answers based on the idea of “everyone should do a part” are not really helpful in the sense that we would never agree on what the responsibilities are.
Not necessary to say that fossil fuels increase pollution…
… that shorten people’s lives.
To create sounding policies, we need to understand causal relationships between variables. Only then, we will make progress when drawing social policies.
This is where things can get tricky.
This is where the selection bias plays a role.
To understand the real causal effects of pollution on health, we need Randomized Control Trials.
For instance, to answer questions such as
We would need Randomized Controlled Trials (RCTs).
This is an experimental design that intends to answer causal questions.
Unfortunately, the current debate almost always ignores these problems.
The current debate is way less technical than it should be.
But to actually find good answers, we need a more technically-grounded debate.
It is kind of our job to improve the debate.
Climate is expected to change.
It is not about 2C higher on an average day. It is about the distribution & variation of the increase. This is where problems are.
Limiting to 2C does not really mean much.
Also, most of these days will occur in developing countries.
Which brings again the question that How can they grow while limiting the effects of pollution and energy use?
Innovation is certainly a good course of action. Source
Find me at: