Weather is caused by disturbances within the atmosphere, but climate is controlled by external influences, such as the distribution of oceans and continents, the extent of ice and snow-cover, variations in the amount of energy from the sun, and changes in the chemical composition of the atmosphere.
The culture and external affairs minister outlined five criteria in terms of what the public should expect of the companies: distribution, audiences, education and community involvement, the need to develop new talent and their international role.