Climate connectivity can mean either the ability of a landscape to let organisms move as climate conditions shift, or the linking of climate knowledge across fields. The distinction matters for risk communication: the first concerns routes, barriers and changing habitat; the second concerns helping people find and interpret connected evidence. Neither meaning, by itself, guarantees lower risk.
Two meanings of climate connectivity
In ecology, climate connectivity describes how a landscape promotes or hinders organisms’ movement in response to a changing climate. In climate knowledge work, it describes connections among concepts, information and organizations working on mitigation, adaptation and disaster risk reduction. The term should be defined before it is used in a risk message, because the two meanings concern different kinds of movement and connection.
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Ecological connectivity: whether species can move through a changing landscape
As temperatures and other climate conditions shift, a species may need to move to track places that remain suitable. Whether it can do so depends on more than the distance between current and future habitat. Climate velocity describes how quickly and how far a species may need to move to follow suitable conditions; the intervening route may be easier or harder to cross, and human land use can add barriers or resistance. The U.S. Forest Service summarizes these factors in its account of Human land uses reduce climate connectivity across North America.
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How to explain an ecological pathway
Imagine a species whose suitable climate is shifting toward cooler elevations. A useful communication explains which species is at issue, where suitable conditions are changing, the distance or route involved, and what lies along that route. Roads, developed land or other human uses may make passage more difficult. The message should also distinguish a possible route from a successful range shift: connectivity can affect whether movement is feasible, but it does not ensure that a species will move, survive or establish itself in a new area.
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That distinction is important when discussing protected areas. A 2023 global assessment of a species-agnostic protected-area network found that over half of protected land area and two-thirds of protected units were at risk of climate-connectivity failure under the study’s defined factors. The authors considered impediments including distance, human land use, climate conditions along routes and a lack of analogous climates. This is a finding about that assessment, not a forecast that all protected areas or ecosystems will fail. See the PubMed abstract.
Knowledge connectivity: linking evidence across climate fields
Climate risks and responses are discussed across disciplines and institutions that may use different terminology or publish information in separate places. The Climate Connectivity Hub, developed by the Stockholm Environment Institute (SEI), is a search-and-discovery tool spanning climate mitigation, adaptation and disaster risk reduction. SEI says its Climate Connectivity Taxonomy covers more than 1,000 concepts and links terminology from sources including the IPCC glossary and UNDRR/ISC Hazard Information Profiles. That figure describes SEI’s stated coverage, not an independent assessment of the tool. The Hub’s stated purpose is to help users find relevant information and make better-informed decisions; it is not described as a warning service or risk-prediction model. Details are on SEI’s Climate Connectivity Hub page.
weADAPT describes the Hub as a response to siloed online climate knowledge and communication gaps among people working on climate change. Its taxonomy uses definitions, synonyms and scope notes to make material easier to discover and shared understanding more attainable. These features can help users navigate differences in terminology; they do not establish that the Hub has improved communication outcomes or reduced climate risk. Read weADAPT’s overview.
Why connectivity matters to risk communication
The National Academies describes climate change as a complex, systemic threat involving interactions and feedbacks within and between natural and human systems. For communicators, that framework points to a practical approach: explain how a climate pressure may travel through connected systems, rather than presenting each hazard as an isolated event. For example, a message can identify the climate pressure, the natural or human systems it may affect, and the ways effects could interact. This is a way to apply the systems framework, not a separately tested communication technique. The National Academies’ 2024 proceedings are available at Climate Security in Central America: Proceedings of a Workshop.
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Good risk communication also makes uncertainty and geography visible. State which location, population, ecosystem or decision is being discussed; distinguish observed conditions from projected ones where relevant; and avoid implying that a route, tool or intervention guarantees a particular outcome. When the evidence concerns ecological connectivity, show the possible pathway and its barriers. When the issue is knowledge connectivity, explain how shared terms and links among sources help readers locate relevant information.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What climate connectivity does—and does not—tell you
- It helps frame relationships. Ecological connectivity focuses attention on movement routes and barriers; knowledge connectivity focuses attention on links among concepts, sources and organizations.
- It supports a systems view. Climate-related risks can involve feedbacks across natural and human systems, so explaining connections can make a risk pathway easier to understand.
- It is not a guarantee. Landscape connectivity does not ensure species migration or survival, and a knowledge hub is not proof of improved decisions or reduced risk.
- It needs context. A useful account names the geography, actors or species, relevant route or evidence, and limits of what is known.
The IPCC includes ecosystem connectivity among adaptation options and climate services, including early warning systems, among cross-sector options. These are distinct concepts: ecosystem connectivity concerns ecological processes, while climate services provide information relevant to decisions. See the IPCC Working Group II Chapter 2 and Summary for Policymakers.
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