This is the second of the two new programmes on applications of ESA's new Earth Observation satellite Envisat which will be launched at the end of this month.
This programme focuses on Envisat's SCHIAMACHY instrument which will build on the atmosphere monitoring data provided by the GOME instrument on board ERS-2. The data provided will be be more accurate and will help scientists to further understand such phenomena as global worming and ozone depletion.
The 5-minute A-roll contains split audio with an English guide track and is complemented by a B-roll with international sound only.

10:00:40:20 - Voiceover
In 1997 a major environmental agreement - the Kyoto Protocol - was signed - setting limits on green house gas emission for both developed and developing countires. But the difficult path towards sustainable use of energy has only just started, as became evident at recent climate change conferences, and scientific advice is ever more crucial to pliticians preparing international treaties.
10:01:07:11
In order to undersatncd fully such phenomena as global warming, ozone depletion and rises in sea level & temperature scientists have had to completely change their thinking aobut what is happening in the earth's atmosphere.
10:01:19:19 Soundbite Professor Paul Crutzen
""When I started my studies of atmospheric chemistry only four reactions were thought to be important. Now we know some hundred reactions are important involving some twenty or thirty chemical compounds"".
10:01:34:00 - Voiceover
Stratospheric balloons, aircraft and, more recently, lasers - can only measure local che