Chapter 11. Climate & Energy

Snapshot

Category Description

Climate change lies at the heart of some of the most pervasive and intractable environmental problems. Global energy and transport systems release heat-trapping gases into the atmosphere that warm the surface of the planet and degrade public health. Growing demand for food, commodities, and new development further shape spatial structures and landscapes in ways that alter the Earth’s ability to reflect or absorb heat. These impacts, and others, are producing a strong cascade of effects that imperil existing social and economic structures and threaten the sustainability of our planet. Curtailing the effects of anthropogenic climate change will require immediate, concerted action by all countries at all scales.

Indicators Included

The Climate & Energy issue category uses five indicators to track a country’s progress in reducing three critical greenhouse gases and one climate pollutant. In adding non-COindicators to the 2018 EPI, we have broadened the gauge of national climate change performance. We leverage new emissions inventories to construct a series of metrics intended to yield a more comprehensive assessment of a country’s overall performance.

We measure each country’s Climate & Energy score across the following five indicators:

1.    Carbon dioxide emission intensity (total). This CO2 metric tracks trends on carbon intensity from the entire economy, in tonnes of CO2 emissions per unit of GDP.

2.    Carbon dioxide emission intensity (power). This CO2 metric tracks trends on carbon intensity from the power sector, in tonnes of CO2 emissions per unit of kWh of electricity and heat.

3.    Methane emission intensity. Tracks trends in national emissions intensities of methane gas, reported in tonnes of CO2-equivalent per unit of GDP.

4.    Nitrous oxide emission intensity. Tracks trends in national emissions intensities of nitrous oxide emissions, reported in tonnes of CO2-equivalent per unit of GDP.

5.    Black carbon emission intensity. Tracks trends in national emissions intensities of black carbon emissions, reported in Gg of black carbon per unit of GDP.

Climate and Energy Indicators

Carbon dioxide emission intensity (total)

kt CO2/$B

Carbon dioxide emission intensity (power)

g CO2/kWh

Methane emission intensity

kt CO2-eq/$B

Nitrous oxide emission intensity

kt CO2-eq/$B

Black carbon emission intensity

kt CO2-eq/$B