More than 150 heads of state will discuss climate crisis.

However, the heads of state of the two most pollution creating countries, the United States and China, will not be present.

More than 70 thousand delegates will participate. The 13-day conference will discuss carbon emissions and reduction of fossil fuel use.

The conference is considered important in a year of breaking several climate records. However, the United Arab Emirates, one of the top 10 oil producing countries, is criticizing the climate conference.

Even Sultan Al Jaber, head of the country's state-owned energy company, has been made the president of the conference.