Regional Analysis

Long-term assessment of likely regional and local climate impacts is critical to enabling municipalities, businesses and regional economies to prepare for potentially damaging and costly effects of climate change—from prolonged droughts to more frequent and intense extreme events such as major storms and heatwaves. But the tools most commonly used to project future climate impacts, Earth-system models (ESMs), are not up to the task. ESMs are too computationally time-consuming and expensive to run at sufficient resolution to provide the needed local and regional detail.

Now convening in Katowice, Poland, amid dire warnings from the IPCC Special Report on Global Warming of 1.5 degrees Celsius and the National Climate Assessment about the pace of climate change and severity of its impacts, the 24th Conference of the Parties (COP24) to the United Nations Framework Convention on Climate Change (UNFCCC) aims to get the world on track to keep global warming well below 2 degrees Celsius.

Latin America Report - Executive Summary

Under the United Nations (UN) Paris Agreement, 195 nations signed‑on to limit the rise in average global surface temperatures to less than 2 degrees Celsius (C) above pre‑industrial levels. Reaching this goal will require a transformation of the global energy system over the upcoming decades. Most of the signatories of the Paris Agreement are refining their Nationally Determined Contributions (NDCs) for the 2018 Facilitative Dialogue that will be held at the 24th session of the Conference of the Parties (COP24) in Katowice, Poland in December 2018. Countries can deploy a wide range of policies to bridge the gap between current emission trajectories and NDC goals, and national strategies for compliance with NDCs are evolving.

The goals of this report are to conduct a gap analysis between emission levels that can be achieved under planned policies/practices and national‑level NDC targets for ten selected Latin American (“LAM”) countries—Argentina, Brazil, Chile, Colombia, Ecuador, Mexico, Panama, Peru, Uruguay, and Venezuela—to identify key challenges to compliance, and to suggest regionally applicable policy and technology solutions, with a focus on the electricity sector. There are several publications that track the progress of reaching the Paris Agreement goals, such as UN Emissions Gap Report and Climate Action Tracker (climateactiontracker.org). They focus on global results providing information for selected countries.

Main Takeaways

  • For the Paris Agreement process, the Latin American countries pledge to reduce their emissions through 2025 or 2030 and introduce numerous policies to fulfill their pledges. This report offers a discussion of policy instruments and technologies in the energy sector that can assist ten selected Latin American countries (“LAM”) in achieving their emission mitigation targets.
  • In aggregate the LAM region is making strong progress towards its Paris goals with government‑led efforts to increase the use of renewables and natural gas. Under the unconditional pledges, the LAM region faces an emissions gap (i.e., the needed reduction to meet the Paris pledges) of around 60 MtCO2e, which indicates that the LAM region will need additional actions to reduce emissions by 2% by 2030 relative to its current trajectory. Under the conditional (i.e., subject to more ambitious global efforts and technology and financial transfers) pledges, the emissions gap is about 350 MtCO2e, which indicates a needed reduction of 10% by 2030.
  • Individually, while some countries are projected to be close to or to even over‑achieve their unconditional and conditional goals for 2030, others require additional efforts. While some LAM countries face the challenge of developing stable regulatory and legal frameworks to further encourage private investments in clean energy projects, there are many policy and technology options available to them to reduce the emissions gap.
  • Carbon pricing through taxes or cap‑and‑trade systems tends to be the most cost‑effective option but can be politically challenging to implement. Other policy instruments are therefore needed to promote clean technology (e.g., enhancing renewable energy auctions and support to natural gas infrastructure development).
  • While wind and solar generation provide attractive options for lowering emissions, enhancement of natural gas infrastructure enables higher penetration of intermittent renewables by serving as backup capacity.
  • Our country‑specific analysis for Argentina and Colombia shows that existing plans for the expansion of non‑fossil electricity generation are sufficient to meet unconditional emission reduction targets in Argentina and Colombia. Conditional emissions reduction pledges can be achieved with moderate additional policies. For example, when non‑fossil electricity targets are met, the addition of an all‑sectors emission trading scheme (ETS) that caps emissions at the level consistent with each nation’s conditional pledge results in carbon prices in Argentina and Colombia of, respectively, of $2.7 and $2.9 per tCO2e.
  • Our assessment is unique in that the gap analysis covers both larger and smaller Latin American economies and clearly documents the data and assumptions associated with our calculations. We hope the open source format of our input data and tools for analysis will enhance the capacity to analyze the Latin America countries’ pathways in meeting their emission mitigation goals.

ASEAN Report - Executive Summary

Under the United Nations (UN) Paris Agreement, 195 nations signed‑on to limit the rise in average global surface temperatures to less than 2 degrees Celsius (C) above pre‑industrial levels. Reaching this goal will require a transformation of the global energy system over the upcoming decades. Most of the signatories of the Paris Agreement are refining their Nationally Determined Contributions (NDCs) for the 2018 Facilitative Dialogue that will be held at the 24th session of the Conference of the Parties (COP24) in Katowice, Poland in December 2018. Countries can deploy a wide range of policies to bridge the gap between current emission trajectories and NDC goals, and national strategies for compliance with NDCs are evolving.

The goals of this report are to conduct a gap analysis between emission levels that can be achieved under current policies/practices and national‑level NDC targets for the Association of Southeast Asian Nations (ASEAN) block of ten countries (Brunei Darussalam, Cambodia, Indonesia, Lao PDR, Malaysia, Myanmar, Philippines, Singapore, Thailand, and Vietnam), to identify key challenges to compliance, and to suggest regionally applicable policy and technology solutions, with a focus on the electricity sector. There are several publications that track the progress of reaching the Paris Agreement goals, such as UN Emissions Gap Report and Climate Action Tracker (climateactiontracker.org). They focus on global results providing information for selected countries.

Main Takeaways

  • For the Paris Agreement process, the Association of Southeast Asian Nations (ASEAN) countries pledge to reduce their emissions through 2030 and introduce numerous policies to fulfill their pledges. This report offers a discussion of policy instruments and technologies in the energy sector that can assist ASEAN countries in achieving their emission mitigation targets.
  • The ASEAN countries face the challenge of reducing GHG emissions while at the same time expanding energy supply to meet the needs of their rapidly developing economies. In aggregate the ASEAN region is making good progress towards its Paris goals but still requires additional action to sufficiently decrease emissions from its current trajectory.
  • Under the unconditional pledges, the ASEAN region faces an emissions gap (i.e., the needed reduction to meet the Paris pledges) of around 400 MtCO2e, which indicates that the ASEAN region will have to reduce emissions by 11% by 2030 relative to its current trajectory. Under the conditional (i.e., subject to more ambitious global efforts and technology and financial transfers) pledges, the emissions gap is about 900 MtCO2e, which indicates a needed reduction of 24% by 2030.
  • Individually, while some countries are projected to be close to or to even over‑achieve their goals for 2030, others need substantial additional efforts. However, there are many policy and technology options to reduce the emissions gap.
  • Carbon pricing through taxes or cap‑and‑trade systems tends to be the most cost‑effective option but can be politically challenging to implement. Other policy instruments are therefore needed to promote clean technology (e.g., support to natural gas infrastructure development for countries with large coal use and renewable energy auctions for all ASEAN countries).
  • While wind and solar generation provide attractive options for lowering emissions, a switch from coal to natural gas promotes lower‑carbon power generation and enables higher penetration of intermittent renewables by serving as backup capacity.
  • Our country‑specific analysis for Indonesia and Vietnam shows that emission reduction goals are achievable at a manageable cost. For an economy‑wide policy, the GDP cost of meeting unconditional pledges in Indonesia and Vietnam is only 0.03% and 0.008%, respectively, relative to GDP in a business‑as‑usual scenario in 2030.
  • Our assessment is unique in providing a gap analysis that consistently covers all ASEAN countries. We provide all input data and tools used in our analysis in an open source format. We hope the open source format will enhance the capacity of ASEAN economies to analyze their pathways to meeting their emission mitigation goals.

Most signatories of the Paris Agreement are refining their Nationally Determined Contributions (NDCs) for the 2018 Facilitative Dialogue that will be held at the 24th session of the Conference of the Parties (COP24) in Katowice, Poland in December 2018. National strategies for compliance with NDCs are evolving: countries can deploy a wide range of policies to bridge the gap between current emission trajectories and NDC goals.

We evaluate the impact of China’s new air pollution standards on sulfur dioxide (SO2) emissions by comparing newly available data from Continuous Emissions Monitoring Systems (CEMS) at coal power plants with satellite measures. First, we show that following the July 2014 deadline for implementing tighter emissions standards, stack concentrations of SO2 reported by CEMS declined by 13.9%. Second, on average the ratios of the declines of SO2 measures in the satellite data and the CEMS data are about 0.5. However, the degree of correspondence between the two data sources varies by policy stringency, with weak correspondence found in key regions facing the toughest new limits. Third, large plants achieved compliance earlier than small (typically) power and heat cogeneration plants. To achieve continued air quality improvement, our results suggest a need for increased scrutiny of emissions data quality and monitoring practices and clear long-term targets.

Top-down energy-economic modeling approaches often use simplified techniques to represent heterogeneous resource inputs to production. We show that for some policies, such as feed-in tariffs for renewable electricity, detailed representation of renewable resource grades is required to describe the technology more precisely and identify cost-effective policy designs. We demonstrate the hybrid approach for modeling heterogeneity in the quality of natural resource inputs required for renewable energy production in a stylized computable general equilibrium framework. Importantly, compared to the traditional approach, the hybrid approach resolves near-flat or near-vertical sections of the supply curve and improves the precision of policy simulation. We then represent the shape of a resource supply curve based on more detailed data. We show that for the case of onshore wind development in China, a differentiated feed-in tariff design that can only be modeled with the hybrid approach requires less than half of the subsidy budget needed for a uniform feed-in tariff design to achieve the same installation targets.

Highlights

• We extend the hybrid approach to model heterogeneity of resource inputs in CGE model.

• The approach can integrate detailed resource data allowing more precise simulation.

• A modeling case on China’s onshore wind shows the accuracy and flexibility of the approach.

• A differentiated FIT design requires less subsidy and is more cost-effective.

While the most devastating and costly impacts of climate change occur at regional and local scales, Earth System Models (ESMs), which simulate the climate, are too computationally time-consuming and expensive to run at sufficient resolution to provide this level of detail. But assessment of regional and local climate impacts is critical to enabling municipalities, businesses and regional economies to prepare for the effects of a changing climate—including the possibility of more frequent and intense extreme events such as major storms and heatwaves. To that end, this study uses a regional climate model to downscale middle and end-of-century climate projections of an ESM under a high-impact emissions scenario to a horizontal resolution of three kilometers. The resulting high-resolution climate projections consist of more than 200 climate variables at hourly frequency. This allows for analysis of changes in temperature, precipitation and other climate variables within a single 24-hour period. The aim of these projections is to support further assessments of climate change impacts and sustainability studies in the region.

 

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