Proceedings of the 48th Session of the International Seminars on Nuclear War and Planetary Emergencies held in Erice, Sicily. This Seminar has again gathered, in 2015, over one hundred scientists from 43 countries in an interdisciplinary effort that has been going on for the last 32 years, to examine and analyze planetary problems which had been followed up, all year long, by the World Federation of Scientists' Permanent Monitoring Panels.

Proceedings of the 46th Session of the International Seminars on Nuclear War and Planetary Emergencies held in Erice, Sicily. This Seminar has again gathered, in 2013, over 100 scientists from 43 countries in an interdisciplinary effort that has been going on for the last 32 years, to examine and analyze planetary problems which had been followed up, all year long, by the World Federation of Scientists' Permanent Monitoring Panels.

Proceedings of the 44th Session of the International Seminars on Nuclear War and Planetary Emergencies held in Erice, Sicily. This seminar has again gathered, in 2011, over one hundred scientists in an interdisciplinary effort that has been going on for the last 31 years, to examine and analyze planetary problems which have been followed up, all year long, by the World Federation of Scientists' Permanent Monitoring Panels.

Proceedings of a seminar focusing on planetary emergencies, followed in a multidisplinary approach since 1980 by permanent monitoring panels.

The Erice International Seminars are multidisciplinary seminars attended by over 100 eminent participants from all fields of science. Each year, a few scientific issues are selected and experts are invited to present contrasting views during the plenary multidisciplinary sessions of the seminar. General debates soon follow. These sessions offer a unique opportunity for specialists to broaden their perspectives after being confronted with ideas and suggestions from high level scientists in complementary domains of science. Associated workshops allow the experts to further refine and process the ideas evoked during the seminar. This year's topics are focused on the World Energy Crisis and more specifically on the future of nuclear power, the sustainability of biofuels and nuclear waste. On Global Monitoring of the Planet we have focused on the climate change issue and specifically on the theoretical basis for model calculations, on vector-borne and air-borne particulates disseminating diseases and the crisis in internet security. A full day session was devoted to the Disarmament and Proliferation Regime, in collaboration with the Government of Italy and international institutions.

Proceedings of the 45th Session of the International Seminars on Nuclear War and Planetary Emergencies held in Erice, Sicily. This Seminar has again gathered, in 2012, over one hundred scientists from 43 countries in an interdisciplinary effort that has been going on for the last 31 years, to examine and analyze planetary problems which had been followed up, all year long, by the World Federation of Scientists' Permanent Monitoring Panels.

This was the first of a number of seminars dealing with one of the most complex of the new challenges in the 21st century, which call for the participation of a broad range of experts. Eminent economists, decision-makers, defence specialists, political analysts and sociologists presented their views and participated in the debates. In the wake of the dramatic event of 11 September 2001, the Afghanistan war and the resurgence of terrorist acts on all the continents, a host of issues were reconsidered and the role of science and technology was reassessed. The 27th Session was primarily oriented toward the definition of the new types of confrontation, and the identification of various factors and issues that gave rise to them and global trends.The proceedings have been selected for coverage in:* Index to Scientific & Technical Proceedings (ISTP CDROM version / ISI Proceedings)* Index to Social Sciences & Humanities Proceedings (R) (ISSHP (R) / ISI Proceedings)* Index to Social Sciences & Humanities Proceedings (ISSHP CDROM version / ISI Proceedings)

This proceedings volume contains presentations, group discussions and reports on terrorism-related issues, such as: motivations; toots and countermeasures; worldwide stability; risk analysis.