A contingent of Orthodox rabbis spoke green, albeit in abstract terms, with European Union leaders Monday in an exchange that included Judaism's moral stand on climate change and environmental responsibility. "Our prime collective duty is to ensure that our age will not suffer condemnation as one which succeeded in becoming the most technologically progressive yet allowed itself to sink into moral regression," the rabbis said, hinting that Judaism obligates Jews to protect the earth from pollution. The matzah eaten by Jews on Pessah symbolizes humility, according to the rabbis, who stressed that "the only substrate on which the world can substantively build a better future is one which promotes, champions and exhorts, by word and deed, an ever more selfless, considerate and inclusive approach to the tensions, difficulties and dilemmas apparently inherent in modern day living." The four-man rabbinic delegation was made up of Chief Rabbi of Rome Riccardo Shmuel Di Segni, Chief Rabbi of Poland Michael Schudrich, Rabbi Rafael Evers of the Orthodox Jewish Communities of the Netherlands and Rabbi Mordechai Ginsbury, chairman of the Rabbinical Council of the UK's United Synagogue. The meeting, which took place all day, was jointly chaired by European Commission President Jose Manuel Barroso, European Parliament President Hans-Gert PÃ¶ttering and the current President of the European Council, Slovenian Prime Minister Janez Jansa.