The authoritative guide to ensuring science and technology make life on Earth better, not worse.


Perry World House

Perry World House is the University of Pennsylvania’s hub for global engagement. It contributes a regular column to the Bulletin on the implications of emerging technologies for global politics. Follow Perry World House at @perryworldhouse.


Articles by Perry World House

hands cupping water over cracked mud

How climate-related tipping points can trigger mass migration and social chaos

By Perry World House | Climate Change

Early adopters in confronting climate: cities

By Perry World House | Analysis, Climate Change
President Ronald Reagan and Soviet General Secretary Gorbachev signing the INF Treaty in the East Room of the White House on December 8, 1987.

What the impending death of the INF teaches about future arms control agreements

By Perry World House | Columnists, Nuclear Risk, Nuclear Weapons, The INF Treaty and the Future of Arms Control
An MQ-9 Reaper flies a combat mission over southern Afghanistan. (Photo credit: US Air Force / Lt. Col. Leslie Pratt)

A way to rein in drone proliferation

By Perry World House | Columnists, Technology and Security
Wind turbines are pictured, along with water and a sunrise or sunset.

How to bridge the Trump gap in climate finance

By Perry World House | Climate Change, Columnists
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The current US negotiating strategy with North Korea is doomed

By Perry World House | Columnists, Nuclear Weapons

Artificial intelligence beyond the superpowers

By Perry World House | Artificial Intelligence, Columnists

When shows of strength are risky: the case for restraint on North Korea

By Perry World House | Columnists, Nuclear Weapons
Non-state-drones.jpg

Militant groups have drones. Now what?

By Perry World House | Columnists, Technology and Security

Cities can’t lead on climate change mitigation

By Perry World House | Climate Change, Columnists

As more wars are fought in cities, new technology can help and hurt

By Perry World House | Columnists, Technology and Security

When neuroscience leads to neuroweapons

By Perry World House | Biosecurity, Opinion, Special Topics