Integrating climate impacts across energy, water, land systems within a global framework&#160;
Authors: Awais Muhammad , Vinca Adriano , Byers Edward , Fricko Oliver , Frank Stefan , Satoh Yusuke , Krey Volker , Riahi Keywan 
Published: March 2022

&lt;p&gt;&lt;span xml:lang=&quot;EN-US&quot; data-contrast=&quot;auto&quot;&gt;&lt;span&gt;IIASA&amp;#8217;s Integrated Assessment Model (IAM),&amp;#160;&lt;/span&gt;&lt;span&gt;MESSAGEix&lt;/span&gt;&lt;span&gt;-GLOBIOM is used in various&amp;#160;&lt;/span&gt;&lt;span&gt;assessments&lt;/span&gt;&lt;span&gt;&amp;#160;to understand&amp;#160;&lt;/span&gt;&lt;span&gt;scenarios of&lt;/span&gt;&lt;span&gt;&amp;#160;socio-economic development within the energy and land system&lt;/span&gt;&lt;span&gt;s&lt;/span&gt;&lt;span&gt;&amp;#160;across scales (global, country, basin). However, the representation of climate impacts and water systems&lt;/span&gt;&lt;span&gt;&amp;#160;within IAMs&lt;/span&gt;&lt;span&gt;&amp;#160;until now has been limited&lt;/span&gt;&lt;span&gt;. The&lt;/span&gt;&lt;span&gt;&amp;#160;study&amp;#160;&lt;/span&gt;&lt;span&gt;goes a step forward&amp;#160;&lt;/span&gt;&lt;span&gt;on improving the representation of climate impacts&lt;/span&gt;&lt;span&gt;&amp;#160;and&lt;/span&gt;&lt;span&gt;&amp;#160;the capability to analyze interactions&amp;#160;&lt;/span&gt;&lt;span&gt;betw&lt;/span&gt;&lt;span&gt;een&lt;/span&gt;&lt;span&gt;&amp;#160;population, economic growth, energy,&amp;#160;&lt;/span&gt;&lt;span&gt;land,&lt;/span&gt;&lt;span&gt;&amp;#160;and water resources in a dynamic system&amp;#160;&lt;/span&gt;&lt;span&gt;simultaneously&lt;/span&gt;&lt;span&gt;.&lt;/span&gt;&lt;span&gt;&amp;#160;&lt;/span&gt;&lt;span&gt;It uses spatially resolved representation of water&amp;#160;&lt;/span&gt;&lt;span&gt;systems&lt;/span&gt;&lt;span&gt;&amp;#160;to retain hydrological information without compromising computation&lt;/span&gt;&lt;span&gt;al&lt;/span&gt;&lt;span&gt;&amp;#160;complexity, and simplified water&amp;#160;&lt;/span&gt;&lt;span&gt;availability and key&amp;#160;&lt;/span&gt;&lt;span&gt;infrastructure&lt;/span&gt;&lt;span&gt;&amp;#160;assumptions map&lt;/span&gt;&lt;span&gt;ped&amp;#160;&lt;/span&gt;&lt;span&gt;with&lt;/span&gt;&lt;span&gt;&amp;#160;the&lt;/span&gt;&lt;span&gt;&amp;#160;energy and land system&lt;/span&gt;&lt;span&gt;s&lt;/span&gt;&lt;span&gt;.&amp;#160;&lt;/span&gt;&lt;span&gt;The&amp;#160;&lt;/span&gt;&lt;span&gt;result&lt;/span&gt;&lt;span&gt;s&lt;/span&gt;&lt;span&gt;&amp;#160;from this study&amp;#160;&lt;/span&gt;&lt;span&gt;inform&lt;/span&gt;&lt;span&gt;&amp;#160;&lt;/span&gt;&lt;span&gt;the&lt;/span&gt;&lt;span&gt;&amp;#160;required&lt;/span&gt;&lt;span&gt;&amp;#160;regional and sectoral&lt;/span&gt;&lt;span&gt;&amp;#160;investments&amp;#160;&lt;/span&gt;&lt;span&gt;pathways across mitigation and non-mitigation pathways.&amp;#160;&lt;/span&gt;&lt;span&gt;The results also highlight the importance of water as a&lt;/span&gt;&lt;span&gt;&amp;#160;constraint&lt;/span&gt;&lt;span&gt;&amp;#160;in energy and land&lt;/span&gt;&lt;span&gt;-&lt;/span&gt;&lt;span&gt;use&amp;#160;&lt;/span&gt;&lt;span&gt;decisions&lt;/span&gt;&lt;span&gt;&amp;#160;and implications of global responses to&amp;#160;&lt;/span&gt;&lt;span&gt;the&amp;#160;&lt;/span&gt;&lt;span&gt;limited&lt;/span&gt;&lt;span&gt;&amp;#160;water availability from water resources &amp;#8211; renewable water, non-renewable&amp;#160;&lt;/span&gt;&lt;span&gt;groundwater&lt;/span&gt;&lt;span&gt;, desalinated water&lt;/span&gt;&lt;span&gt;.&amp;#160;&lt;/span&gt;&lt;/span&gt;&lt;span&gt;&amp;#160;&lt;/span&gt;&lt;/p&gt;