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International Institute for Applied Systems Analysis


How will climate change transform agriculture?

A new study by IIASA researchers finds that climate change impacts on crop yields could lead to a 18% decline in global caloric production or a 3% increase by 2050. The researchers identified likely needed adaptations and transformations for global agricultural systems, highlighting the importance of irrigation and regional connections.

SourceInternational Institute for Applied Systems Analysis·JournalEnvironmental Research Letters·DateDec 18, 2014

Climate policy pledges are an important step forward but fall short of 2°C

The study assesses major economies' greenhouse gas emissions under different scenarios. It finds that current pledges lead to earlier emission peaking and less warming than without these policies, but not sufficient for the 2°C target. Financial support of $100-150 billion/year by 2030 could achieve efficiency in reducing emissions.

Growing cooperation: First the carrot, then the stick

Researchers developed game-theoretical model to examine different incentive schemes, finding rewarding cooperative agents first leads to higher cooperation levels. The optimal strategy shifts to punishing wrongdoers after a sufficiently large proportion of agents cooperate, promoting highest level of cooperation at lowest cost.

SourceInternational Institute for Applied Systems Analysis·JournalJournal of The Royal Society Interface·DateDec 2, 2014

Climate change: Limiting short-lived pollutants cannot buy time on CO2 mitigation

A new integrated study suggests that targeting emissions of non-CO2 gases and air pollutants may not produce the desired long-term climate change benefits. The research highlights the importance of considering linkages between short-lived climate forcers and CO2 in climate stabilization scenarios, finding that near-term action on short...

SourceInternational Institute for Applied Systems Analysis·JournalProceedings of the National Academy of Sciences·DateNov 3, 2014

What will climate policy mean for coal?

A new study by IIASA researchers suggests that delaying climate policies could lead to up to 37% of global investment in coal power plants being stranded, with China and India bearing most of the costs. The study explores strategies to reduce stranded capacity, including avoiding new plant construction, shifting to other power sources,...

SourceInternational Institute for Applied Systems Analysis·JournalTechnological Forecasting and Social Change·DateMar 31, 2014

Better livestock diets to combat climate change and improve food security

A new study reveals that targeted livestock production systems can lead to a 23% reduction in emissions from land use change within two decades. This shift would make it more profitable for farmers to expand mixed systems with higher-quality feed, resulting in increased efficiency and reduced environmental impact.

SourceInternational Institute for Applied Systems Analysis·JournalProceedings of the National Academy of Sciences·DateFeb 24, 2014

Continuing with pledge pathways to 2030 could push climate goals out of reach

New research from a global consortium finds that current pledges for greenhouse gas emission reductions are insufficient, putting climate targets beyond reach. The study suggests that adherence to pledges would result in higher emissions than necessary to meet the 2°C target, limiting mitigation options and increasing costs.

SourceInternational Institute for Applied Systems Analysis·JournalTechnological Forecasting and Social Change·DateDec 3, 2013