FACT SHEET The Long-range Energy Alternatives Planning - Integrated Benefits Calculator (LEAP-IBC)

The LEAP-IBC is an integrated planning tool developed by the Stockholm Environment Institute in collaboration with the US EPA and the University of Colorado. It extends the LEAP software by combining emission scenarios with the GEOS-Chem global atmospheric chemistry transport model and exposure-response functions. The tool allows users to characterize national emissions of greenhouse gases and short-lived climate pollutants (SLCPs), explore mitigation scenarios, and estimate resulting benefits in terms of avoided premature deaths, reduced crop losses for wheat, rice, maize, and soybean, and changes in global radiative forcing and temperature. While the core LEAP platform is applicable globally, the IBC component is currently available for 71 countries, with 12 countries using it specifically for the Climate and Clean Air Coalition's SNAP Initiative.

• LEAP-IBC enables countries to model and compare emission reduction scenarios to determine their effects on human health, agriculture, and the global climate.
• The tool calculates health impacts by estimating premature mortality from exposure to ozone and PM2.5, specifically linking PM2.5 to heart disease, stroke, lung cancer, and respiratory diseases.
• Agricultural impacts are measured as the loss in tonnes of specific crops—wheat, rice, maize, and soybean—resulting from ozone exposure during the growing season.
• The system estimates climate impacts by calculating the global change in radiative forcing for both long-lived greenhouse gases like CO2 and short-lived climate forcers, converting this into annual global temperature changes.
• The LEAP-IBC is currently available for 71 countries, and 12 of these are utilizing the tool for national planning under the Climate and Clean Air Coalition's SNAP Initiative.

APA

Stockholm Environment Institute (2017). FACT SHEET The Long-range Energy Alternatives Planning - Integrated Benefits Calculator (LEAP-IBC). https://www.sei.org/wp-content/uploads/2017/11/sei-factsheet-leap-ibc-2.pdf

Chicago

Stockholm Environment Institute. FACT SHEET The Long-range Energy Alternatives Planning - Integrated Benefits Calculator (LEAP-IBC). 2017. https://www.sei.org/wp-content/uploads/2017/11/sei-factsheet-leap-ibc-2.pdf.

Wikipedia

{{cite report |author=Stockholm Environment Institute |title=FACT SHEET The Long-range Energy Alternatives Planning - Integrated Benefits Calculator (LEAP-IBC) |date=2017 |url=https://www.sei.org/wp-content/uploads/2017/11/sei-factsheet-leap-ibc-2.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{stockholmenvironmentinstitute2017fact, author = {{Stockholm Environment Institute}}, title = {{FACT SHEET The Long-range Energy Alternatives Planning - Integrated Benefits Calculator (LEAP-IBC)}}, institution = {Stockholm Environment Institute}, year = {2017}, url = {https://www.sei.org/wp-content/uploads/2017/11/sei-factsheet-leap-ibc-2.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }