The Limits of Science Diplomacy
Understanding science diplomacy today: Part 4 of a five-part introductory series.
This is Part 4 of a five-part introductory series on science diplomacy.
Science diplomacy is often described in aspirational terms: cooperation across borders, shared knowledge, and evidence-based problem-solving in the global interest.
In practice, its limits are just as important as its possibilities.
Science diplomacy operates within political, economic, and security constraints that shape what cooperation is possible, when it breaks down, and who benefits. Understanding those limits is essential for assessing what science diplomacy can realistically achieve and what it cannot.
Openness Meets Security
One of the most persistent tensions in science diplomacy lies between openness and security.
Scientific progress has long depended on openness: the exchange of data, methods, and people. Yet many areas of contemporary science are also strategically sensitive. Advances in artificial intelligence, biotechnology, quantum computing, space systems, and advanced materials are increasingly viewed through a national security lens.
As Sir Peter Gluckman, president of the International Science Council, has noted, we now live in “a world where trust in science appears less certain, where science denial has become an ideological badge, and where debates over the acceptance and use of scientific knowledge are caught in extreme partisan politics.”
Governments have responded by tightening controls on research collaboration, data sharing, and scientific mobility. While often framed as necessary safeguards, these measures also narrow the space for cooperation and complicate international scientific exchange.
Science diplomacy cannot resolve this tension. At best, it can help manage it — by clarifying risks, identifying safeguards, and preserving limited channels of engagement.
Inequality in Scientific Capacity
Another structural limit of science diplomacy is inequality.
Scientific cooperation often assumes relatively comparable capacity among partners. In reality, research infrastructure, funding, and access to data are unevenly distributed across countries and regions. These disparities shape whose knowledge counts, who sets agendas, and who benefits from collaboration.
Capacity-building initiatives can mitigate some gaps, but they do not eliminate underlying imbalances in resources and influence. As a result, science diplomacy can reproduce existing power asymmetries, even when framed as inclusive or cooperative.
When Politics Override Expertise
Scientific advice does not operate in a vacuum.
Even when assessments are widely accepted, governments may ignore, delay, or selectively use them for political reasons. Domestic pressures, economic interests, and short-term calculations often outweigh technical recommendations.
Gluckman has observed that while some of the “greatest victories of science diplomacy” came from persuading countries to cooperate on shared global interests, that commitment “was always vulnerable — domestic politics and especially the politics of interests and short-term thinking made some relatively reluctant to engage.”
Scientific expertise can inform decisions, but it cannot compel them. When evidence clashes with political narratives or economic priorities, science diplomacy is often sidelined.
Fragmentation and Strategic Competition
Science diplomacy developed during periods when multilateral cooperation was expanding. Today, it operates in a more fragmented environment.
Strategic competition has led to selective engagement, parallel research ecosystems, and competing standards. Countries increasingly choose partners based on political alignment rather than scientific complementarity.
This fragmentation narrows the scope for universal frameworks and complicates coordination on global challenges. Science diplomacy can mitigate some of these effects, but it cannot reverse broader geopolitical trends.
Institutional Constraints
The institutions that practice science diplomacy face their own limitations.
International organizations depend on cooperation among member countries, sustained funding, and political support. Advisory mechanisms may lack authority or resources. Informal networks can be disrupted by policy shifts or crises.
Even well-designed institutions struggle to adapt to rapid technological change. Processes intended to ensure legitimacy and inclusiveness often slow responses to emerging risks.
These constraints shape science diplomacy in practice: cautious, incremental, and often reactive.
Managing Expectations
Perhaps the most important limit of science diplomacy lies in expectations.
Science diplomacy is sometimes presented as a cure for political conflict or a neutral space immune from power politics. These expectations are unrealistic.
It works best as a supporting practice, not a substitute for political negotiation. Its value lies in maintaining dialogue, informing decisions, and managing shared risks under imperfect conditions.
Recognizing its limits clarifies where it can be effective and where other tools are required.
Looking Ahead
Science diplomacy today operates under significant constraints: security concerns, inequality, politicization, and geopolitical competition.
In the final part of this series, the focus turns to what lies ahead, not as prediction, but as a set of emerging fault lines that will shape how science diplomacy evolves in the years to come.
Next: Part 5 — Five Fault Lines to Watch in Science Diplomacy