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This research paper examines the impact of energy efficiency (EE) on the costs of achieving the internationally agreed 2°C target by 2050, specifically estimating global cost savings up to 2030 by comparing an energy-efficient pathway against an energy-intensive pathway focused on energy supply decarbonization.

This research paper analyzes how the accounting of international greenhouse gas (GHG) offsets affects the integrity of global climate mitigation pledges. Using a spreadsheet model based on marginal abatement costs, the authors examine scenarios where offsets are either double-counted (credited to both the buyer and seller) or counted only for the buyer. The study finds that double-counting could significantly dilute the ambition of current pledges, potentially reducing global abatement by up to 1.6 billion tons of CO2e by 2020, thereby increasing the gap to meet 2°C warming targets.

This research paper introduces the Climate and Regional Economics of Development (CRED) model, an integrated assessment model (IAM) designed to analyze the intersection of climate mitigation and international economic development. The model's primary innovations include a focus on global equity through a concave utility function and the use of McKinsey marginal abatement cost curves to project mitigation costs. The authors argue that achieving climate stabilization requires either a very low discount rate or significant capital transfers from high-income to developing nations.