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Ozone Blog

A blog written by Rajendra Shende, Former Head of the OzonAction Branch, in his personal capacity. This blog does not reflect the policy or position of UNEP or the DTIE OzonAction Branch.
By ozonAction on 8/28/2007
4-day traffic trial in the city of Beijing was probably the biggest ever trial to ensure clean air during the next year's 2008 Olympics. On one of those days, I arrived in Beijing; cars with number plates ending with odd numbers were banned from the roads. I could reach my hotel from the airport in no time, as nearly 50 % of Beijing's 3 million cars were off the roads. The taxi driver looked happy, as there were no traffic jams. Even the airport expressway looked more beautiful with thick trees on both sides, which about a decade ago looked so thin and sparse. The Chinese government has taken air pollution seriously, especially in view of the 29th Summer Olympics that will take place exactly one year from now.

I was in Beijing to give an opening presentation at the International Congress of Refrigeration. But I took the opportunity to meet with the Beijing Olympic Organizing Committee at its multi-storied headquarters. This was my third visit to the Beijing Organizing Committee...
By ozonAction on 8/3/2007
Science-driven policy making requires that legislators fully understand science. My many years of experience with bureaucrats have shown that there is a need to de-mystify science and explain the intricacies in a simple language. One of my numerous encounters during international meetings resulted in the following questions from a top-level bureaucrat: "Mr Shende, this is all fine. But how do you explain the science of ozone depletion to a mother?"

I presumed that he believed that mothers do not understand the intricacies of science unless explained in household terms. I, of course, disagreed with his assumption, but decided to take up a challenge. I developed the following dialogue between a mother and a school going child and gave to him in the next 45 minutes.

Mother: What is this ozone layer? I only know about 'chocolate layers' in the cakes I make.

Child: Mother, you do make extremely tasty chocolate layer cakes. But "Mother Earth" has made another kind of layer called the "ozone layer" - about 20-40 km above the earth! It is certainly not as thick as a chocolate layer! In fact it is very thin. Out of 1 million air molecules, less than 10...
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