Um dia internacional sem carros é uma forma eficaz de reduzir a poluição do ar?

Maybe, its an effective methond to reduce the pollution to an extent. By reducing the number of cars we are actually reducing the amount of carbon dioxide. So i believe the effects it has on our environment is also reduced respectively.

I beg differ after all car pollution is not the unique culprit results in air pollution! Industrial development and weak consciousness of protecting environment for human lead to the air pollution! So we should tackle all those tissues simultaneously to fight against air pollution

Yes obviously it helps us to reduce air pollution. Because we dont ride cars on that day.

I think this kind of activities are crucial to warn people about our last chance. Actually a lot of scientists have different ideas about this topic. Firstly we should know that only one car-free day has a small impact on air pollution. In stead of this kind of short notice warnings, we must support pivotal activities which are supported not only governments but also huge conglomerates like big car firms. Secondly, in order to reduce car emission, our governments and local managers should enact important bills which are obeyed by all countries and world. Lastly, the green gas effect which is triggered by engines which are powered fuel or gas, should be eliminated step by step. These kind of cars or trucks or all vehicles should be exchanged with electrical motors or renewable energy using engines. At first glance we may out of limit to turn our predecessors time’s, but we should even struggle to reach some levels of their time’s carbon levels. So it is never be too late.

No, I don't think so. May be an international car free year....!!

Jaja creo que no porque la gente le gustaria manejar autos el proximo día mucho mas. Tenemos tener un mes sin autos! Es similar que el ano nuevo de chino. Ellos tiene tres semanas sin trabajar para disfruta fiestas, familia, bailar, etc. Es bien para su mentalidad. Si tenemos un mes sin autos y también sin trabajar, podríamos disfrutar nuestros vidas mucho mas.

Ich würde sagen, dass er nicht effektiv ist. Die Luftverschmutzung hängt von vielen Faktoren ab. Ein Tag ohne Autos wird allein nicht ausreichen. Abgesehen davon haben viele Länder den Tag einfach ignoriert oder missachtet.

Une journée internationale sans voiture ne réduirait pas beaucoup la pollution de l'air. Pendant le premier confinement, nous avons vu un décroissance d'utilisation des voitures durant quelques semaines. En fait, pas que de voitures, mais aussi d' avions et d'autres moyens de transport pollutants. Néanmoins, la pollution a continué, à cause des usines, des centrales électriques, etc. Et même s'il y avait une amélioration de qualité de l'air pendant le confinement, c'était une réussite court-terme. Il y a des avantages d'une journée sans voiture. Ça sensibiliserait des gens aux autres moyens de transport qui sont meilleur pour l'environnement. Peut-être qu'il y aurait des petites améliorations. Mais on a besoin de faire beaucoup plus, surtout sur le niveau commercial, pour avoir d'air pur. Une journée internationale sans voiture ne suffirait pas.

Direi che non sarà un modo efficace nel senso che, facendo questo, sarà risolto il problema, però avrà un impatto senz'altro come un inizio per la soluzione del problema o addirittura un indizio verso il modo migliore per risolverlo.