CLEAN : Chinas Xi in S Africa ahead of regional summit 2

The video discusses the signing of 26 agreements worth 94 billion Rand between South Africa and other parties. It highlights the severe impacts of climate change on African countries and stresses the need for global cooperation to reduce greenhouse gas emissions, urging developed countries to lead the efforts. The transcript also contains unrelated statements and phrases.

What is the estimated worth mentioned in the text, and what does it refer to?

What challenges are mentioned regarding reaching an agreement on climate change?