# The Think Tank Post > A free index of what the world's policy research institutions are publishing on security and defence, energy and climate, and international economics. We link to every source. 5,666 publications from 600 policy research institutions. ## What this holds, and what it does not Holds: titles, authors, institutions, publication dates, canonical URLs, document types, topics and regions. Facts about publications. Does NOT hold: the text of any publication. No full text, no PDFs, no paraphrase. If you need what a document says, follow its canonical URL to the institution. Attribute quotes to the institution, never to this site. Coverage: Worldwide in ambition. In this first version we cover three topics: security and defence, energy and climate, and international economics and trade. ## Open questions Each gathers several institutions' publications on one open policy question. These are the most useful pages here for answering 'what do think tanks say about X'. - [Are tariffs a legitimate instrument of industrial policy?](https://thinktankpost.com/questions/are-tariffs-a-legitimate-instrument-of-industrial-policy): Tariffs returned to mainstream economic policy faster than the literature defending them. The argument is whether they build domestic capacity or simply tax the people they are meant to protect. - [Can Europe defend itself without the United States?](https://thinktankpost.com/questions/can-europe-defend-itself-without-the-united-states): European defence has rested on American capability for seventy years. The argument now is about how much of it Europe could replace, how quickly, and at what cost. Institutions differ on whether the gap is money, industrial capacity, or command and control. - [Does the energy transition need new nuclear power?](https://thinktankpost.com/questions/does-the-energy-transition-need-new-nuclear): Firm low-carbon power is the part of a decarbonised grid nobody has cheaply solved. Some institutions treat new nuclear as unavoidable, others as the most expensive way to buy capacity that storage will provide sooner. - [Is NATO's deterrent still credible against Russia?](https://thinktankpost.com/questions/is-natos-deterrent-credible-against-russia): Deterrence works only if it is believed. The disagreement runs from force posture on the eastern flank to whether Article 5 would be invoked at all, and institutions reach different conclusions from much the same evidence. - [Is a carbon border tax climate policy or protectionism?](https://thinktankpost.com/questions/is-a-carbon-border-tax-climate-policy-or-protectionism): Border carbon adjustment is defended as the only way to price emissions without exporting them, and attacked as a tariff with a green label. The trade institutions and the climate institutions do not read it the same way. - [Is economic decoupling from China achievable?](https://thinktankpost.com/questions/is-economic-decoupling-from-china-achievable): De-risking, friendshoring and decoupling describe different ambitions and get used interchangeably. Institutions disagree on which parts of the relationship can actually be unwound, and what it would cost to try. - [What role should AI play in military decisions?](https://thinktankpost.com/questions/what-role-should-ai-play-in-military-decisions): Autonomy in targeting and command is moving faster than the doctrine governing it. The split is between those treating it as a capability race and those treating it as an arms-control problem. - [What should replace Russian gas in Europe?](https://thinktankpost.com/questions/what-should-replace-russian-gas-in-europe): Europe replaced Russian pipeline gas faster than almost anyone forecast. What it should build instead is still open: LNG terminals, renewables and storage, demand reduction, or nuclear, each with a different lock-in. ## Topics - [Energy and climate](https://thinktankpost.com/topics/energy-and-climate): Energy systems, decarbonisation, climate policy and the politics of the transition, where institutional positions genuinely diverge. - [Security and defence](https://thinktankpost.com/topics/security-and-defence): Military capability, deterrence, alliances, arms control and armed conflict, as argued by the institutions that advise governments on them. - [International economics and trade](https://thinktankpost.com/topics/international-economics-and-trade): Trade policy, macroeconomics, sanctions, industrial strategy and development finance, across the institutions that model them. ## Browse - [Institutions](https://thinktankpost.com/organisations) - [Regions](https://thinktankpost.com/regions) — by what a publication is about, not where its institution sits - [Search](https://thinktankpost.com/search?q=) — titles only - [About and method](https://thinktankpost.com/about)