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  2. Models, tools, and data

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Tool

The NExus Solutions Tool (NEST)

The concept of nexus thinking has gained traction amongst the applied research community to examine cross-sector linkages between land, water, and energy strategies. A nexus approach identifies the interactions among sectors to better understand the synergies and trade-offs involved in meeting future resource demands in a sustainable way.
Energy, Climate, and Environment (ECE) Integrated Assessment and Climate Change (IACC)
Dataset

IAMC 1.5°C Scenario Explorer

This Scenario Explorer presents an ensemble of quantitative, model-based climate change mitigation pathways underpinning the Special Report on Global Warming of 1.5°C (SR15) by the Intergovernmental Panel on Climate Change (IPCC) published in 2018. The ensemble was also used and extended in the IPCC's Special Report on Climate Change and Land (SRCCL, 2019). 
Energy, Climate, and Environment (ECE) Sustainable Service Systems (S3) Pollution Management (PM) Integrated Assessment and Climate Change (IACC)
Dataset

CD-LINKS Scenario Explorer

The CD-LINKS consortium has developed a set of consistent national and global low-carbon development pathways that take current national policies and the Nationally Determined Contributions (NDCs) as an entry point for short-term climate action and then transition to long-term goals of 1.5 and 2°C as defined by the Paris Agreement. 
Energy, Climate, and Environment (ECE) Sustainable Service Systems (S3) Pollution Management (PM) Integrated Assessment and Climate Change (IACC)
Dataset

IPCC AR5 Scenarios Database (AR5)

The IPCC AR5 Scenarios Database documents the long-term scenarios as reviewed in the Fifth Assessment Report (AR5) of Working Group III of the Intergovernmental Panel on Climate Change (IPCC).
Energy, Climate, and Environment (ECE) Sustainable Service Systems (S3) Pollution Management (PM) Integrated Assessment and Climate Change (IACC)
Dataset

Low Energy Demand study (LED)

An exploratory research and resulting scenario about how far transformative changes on the energy end-use side can lead to.
Energy, Climate, and Environment (ECE) Sustainable Service Systems (S3) Pollution Management (PM) Integrated Assessment and Climate Change (IACC) Transformative Institutional and Social Solutions (TISS)
Dataset

Global Energy Assessment Scenario Database (GEA)

The Global Energy Assessment (GEA) Scenario database documents results and assumptions of the GEA energy transformation pathways that underpin the GEA. The database serves as a central data repository for the dissemination of GEA scenario information.
Energy, Climate, and Environment (ECE) Sustainable Service Systems (S3) Pollution Management (PM) Integrated Assessment and Climate Change (IACC) Transformative Institutional and Social Solutions (TISS)
Tool

Energy Multi-Criteria Analysis Tool (MCA)

An interactive Web-based scenario analysis tool which allows the concurrent assessment of multiple energy objectives.
Energy, Climate, and Environment (ECE) Sustainable Service Systems (S3) Integrated Assessment and Climate Change (IACC)
Dataset

AR6 Scenario Explorer and Database

This Scenario Explorer presents an ensemble of quantitative, model-based pathways underpinning the Sixth Assessment Report (AR6) of Working Group III by the Intergovernmental Panel on Climate Change (IPCC), entitled Climate Change 2022: Mitigation of Climate Change.
Energy, Climate, and Environment (ECE) Integrated Assessment and Climate Change (IACC)
Dataset

ENGAGE Scenario Explorer

The Horizon 2020 project ENGAGE quantifies avoided climate change impacts through analysis of the exposure and associated costs for individual sectors and regions to climate change at different levels of and timing for global peak temperature. A particular focus is placed on quantifying the benefits (or trade-offs) of climate policies on biodiversity, food, poverty, water, air quality, health, and employment, particularly for vulnerable populations.
Energy, Climate, and Environment (ECE) Sustainable Service Systems (S3) Pollution Management (PM) Integrated Assessment and Climate Change (IACC) Transformative Institutional and Social Solutions (TISS)
Dataset

NGFS-IIASA Scenario Explorer

IIASA researchers teamed up with NGFS to publish an updated set of climate scenarios to assess future climate-related risks and influence sustainability goals.
Energy, Climate, and Environment (ECE) Sustainable Service Systems (S3) Integrated Assessment and Climate Change (IACC) Transformative Institutional and Social Solutions (TISS)
Dataset

Gridded Dataset for Electrification in Sub-Saharan Africa (GDESSA)

This high-resolution electrification dataset for Sub-Saharan Africa is developed at the Energy Program of the International Institute for Applied Systems Analysis (IIASA) in cooperation with the Fondazione Eni Enrico Mattei (FEEM).
Energy, Climate, and Environment (ECE) Integrated Assessment and Climate Change (IACC)
Model

OSCAR: A compact Earth system model (OSCAR)

OSCAR is a model of reduced-complexity that describes the interactions between large-scale components of the Earth system that relate to anthropogenic climate change. Its modules are calibrated to emulate the behavior of complex process-based models.
Advancing Systems Analysis (ASA) Exploratory Modeling of Human-natural Systems (EM) Energy, Climate, and Environment (ECE) Integrated Assessment and Climate Change (IACC)
Model

Pathfinder: A Bayesian-inferred simple climate model

Pathfinder is designed to fill a perceived gap within the existing simple climate models by fulfilling three key requirements: (1) the capacity to be calibrated using Bayesian inference, (2) the capacity to be coupled with integrated assessment models (IAMs), and (3) the capacity to explore a very large number of climate scenarios to narrow down those compatible with limiting climate impacts.
Exploratory Modeling of Human-natural Systems (EM) Integrated Assessment and Climate Change (IACC)
Dataset

ISWEL Nexus Basins Scenario Explorer

This Scenario Explorer hosts the results from the Integrated Solutions for Water Energy and Land project (ISWEL).
Energy, Climate, and Environment (ECE) Integrated Assessment and Climate Change (IACC)
Model

Model for Energy Supply Strategy Alternatives and their General Environmental Impact (MESSAGEix)

A modeling framework for medium to long-term energy system planning, energy policy analysis, and scenario development
Water Security (WAT) Integrated Biosphere Futures (IBF) Energy, Climate, and Environment (ECE) Sustainable Service Systems (S3) Pollution Management (PM) Integrated Assessment and Climate Change (IACC) Transformative Institutional and Social Solutions (TISS) Multidimensional Demographic Modeling (MDM) Austria Brazil China Germany Italy Norway

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