The article can be found at Airfarewatchdog.com
Aviation.com Wed Apr 30, 2:30 PM ET
I've highlighted some of the article
Consumers actually have some rights. These forward-thinking rules also apply to non-Europeans who are flying out of Europe (but not those flying to Europe, unfortunately). They put to shame the paltry protections offered in the U.S.
These regulations are spelled out on the European Commission's air transport Web site. Once there, click on "Regulation (EC) No 261/2004 of the European Parliament and of the Council of 11 February, 2004," which is a PDF file. This regulation was put in force on Feb. 17, 2005. If you're traveling from a European airport you'd do well do download this document, print it out, carry it with you, and present it to your airline in the event of a cancellation or lengthy delay.
Exceptions and legal challenges
Deep in the EC web site, however, there is this disclaimer: "Airlines are not obliged to pay compensation if they can prove that the cancellation is caused by extraordinary circumstances which could not have been avoided even if all reasonable measures had been taken (e.g. political instability, meteorological conditions, security risks, unexpected flight safety shortcomings, wild cat strikes) - safety remains the most important right of each passenger! In these cases, the burden of proof lies with the airline, and passengers still have the right to information, assistance and re-routing."
So, presumably, the airline has to show you some kind of proof that weather or a strike caused the delay.
Needless to say, some European airlines and airline associations were not happy with this regulation and challenged it in court, but so far they have been unsuccessful.