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Fay m 20150708_1500_upmc_jussieu_-_room_101

Feb 17, 2017

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Science

Ingrid LE RU
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Page 1: Fay m 20150708_1500_upmc_jussieu_-_room_101
Page 2: Fay m 20150708_1500_upmc_jussieu_-_room_101

Motivation

• A lot of talk about 2oC but limited awareness of implications

• Planning targeted to the medium term

• Debate excessively focused on carbon pricing and a few green financial products

Page 3: Fay m 20150708_1500_upmc_jussieu_-_room_101

Three steps to a zero-carbon future

• Step 1 – Plan ahead for a future with zero emissions

• Step 2 - Getting prices and complementary policies right

• Step 3 - Mind the political economy and smooth the transition for those who stand to be most affected

Page 4: Fay m 20150708_1500_upmc_jussieu_-_room_101

Step 1 – Plan ahead for a future with zero emissions

Page 5: Fay m 20150708_1500_upmc_jussieu_-_room_101

The future is carbon free

• For any temperature limit, there is a maximum CO2 budget

• So CO2 emissions have to go to zero at some point

• The question is when and how?

Page 6: Fay m 20150708_1500_upmc_jussieu_-_room_101

When? By the end of the century

~3oC

~2oC

Baselines

Page 7: Fay m 20150708_1500_upmc_jussieu_-_room_101

How? IPCC told us what it will take

Page 8: Fay m 20150708_1500_upmc_jussieu_-_room_101

Sectoral indicators help track progress along the four pillars of decarbonization

• Progress is required on high-potential measures, and in each of the four pillars

• Beware of marginal changes that do not lead to the long-term goal.

Page 9: Fay m 20150708_1500_upmc_jussieu_-_room_101

There are many co-benefits

Page 10: Fay m 20150708_1500_upmc_jussieu_-_room_101

There are many co-benefits

Page 11: Fay m 20150708_1500_upmc_jussieu_-_room_101

Step 2 - Getting prices and complementary policies right

Page 12: Fay m 20150708_1500_upmc_jussieu_-_room_101

Tax the bads, not the goods!

• Getting prices right is good fiscal policy

• Better to tax energy consumption or emission rather than jobs or investments

• And evasion is more difficult

• Very relevant for low-income countries with weak fiscal institutions

9 11

17

2

Corporatetax

VAT Incometaxes

Diesel tax (similar tocarbon tax)

Tax evasion (%)

Page 13: Fay m 20150708_1500_upmc_jussieu_-_room_101

Prices are not enough: decarbonization faces many obstacles

Page 14: Fay m 20150708_1500_upmc_jussieu_-_room_101

Prices are not enough: a policy package is needed

• Develop the needed technologies • Public support for innovation and

deployment • Accept higher cost per abated ton than

average when using higher-potential technologies

• Act on new investments to make them energy-efficient • Norms and performance standards on cars,

building, appliance, etc.

• Develop the right infrastructure • Paris without metro would emit twice as

much, and be half as responsive to carbon pricing

• But financially challenging

• Inform and promote the right behaviors

Page 15: Fay m 20150708_1500_upmc_jussieu_-_room_101

Step 3 - Mind the political economy and smooth the transition for those who stand to be most affected

Page 16: Fay m 20150708_1500_upmc_jussieu_-_room_101

The political economy is key

Page 17: Fay m 20150708_1500_upmc_jussieu_-_room_101

Climate policies will only be successful if they contribute to development and poverty reduction

• Climate policies can be designed so poor people benefit

• Revenue raising policies make it possible to invest in development and poverty reduction

Page 18: Fay m 20150708_1500_upmc_jussieu_-_room_101

Climate policies will only be successful if they recognize and support those who are affected

• Make industries and regions benefit from the change

• Automakers and electric cars

• Oil and gas industry and carbon capture and sequestration

• Green pilot projects in negatively affected areas

• Avoid concentrated losses and smooth the shock

• Social protection and social safety nets

• Dedicated adjustment mechanisms – examples of the oil shock

• Worker retraining – examples from trade agreements

Page 19: Fay m 20150708_1500_upmc_jussieu_-_room_101

Communication matters…