In this task, you are given a sentence in Spanish and your task is to translate it into English. In translation, keep the numbers and capitalization (capitalize only the first word of each sentence and name).

Todavía no se ha descubierto el grado de contaminación cero de ninguna actividad humana.
In no field of human activity have we ever discovered a zero degree of pollution.

A propósito de Urban, me gustaría terminar con una última reflexión.
With regard to URBAN, I should like to conclude with a final observation.

Señor Presidente Prodi, hoy usted nos ha presentado el programa quinquenal de la Comisión con muchos objetivos aceptables, un programa hecho de escenarios y de temas y, por lo tanto, más allá de los aspectos concretos, es justo detenerse en los grandes temas.

President Prodi, today you have presented the Commission' s five-year programme, and it has many objectives that we endorse. It is a programme based on real-life situations and issues, and it is therefore right to put concrete measures aside for the moment and focus on the major issues.