As many 25,000 people rallied in London on Saturday to mark the International Day of Climate Action. The march began with a rally at the US Embassy. Protestors carried banners reading “George Bush wanted for crimes against the planet.” Meanwhile in Kenya, over 6,000 delegates have gathered for a new round of UN talks on climate change. On Sunday the United Nations warned that global warming could devastate the continent of Africa. A new UN report found that seventy million people could face risks of coastal flooding within 75 years linked to rising seas. More than a quarter of African wildlife habitats also risked destruction. Kenya’s Environment Minister Kivutha Kibwana told delegates “Climate change is rapidly emerging as one of the most serious threats that humanity may ever face.”