COLU @ CONCEPTS

Image copyright GETTY IMAGES Image caption Emissions from human activities have levelled off but concentrations in the atmosphere continue to grow Concentrations of CO2 in the Earth's atmosphere surged to a record high in 2016, according to the World Meteorological Organization (WMO). Last year's increase was 50% higher than the average of the past 10 years. Researchers say a combination of human activities and the El Niño weather phenomenon drove CO2 to a level not seen in 800,000 years. Scientists say this risks making global temperature targets largely unattainable. This year's greenhouse gas bulletin produced by the WMO, is based on measurements taken in 51 countries. Research stations dotted around the globe measure concentrations of warming gases including carbon dioxide, methane and nitrous oxide. The figures published by the WMO are what's left in the atmosphere after significant amounts are absorbed by the Earth's "sinks", which incl...

Image copyright ZEL ATHENA ARCHER Demonstrators are blocking motorways in South African in protest at the murder of white farmers. People have been posting their pictures on Instagram: Skip Instagram post by dirtyfootrose Report End of Instagram post by dirtyfootrose The BBC's Pumza Fihlani in Johannesburg says the protests are already causing racial divisions after some demonstrators were seen carrying the flag from the apartheid era, when South Africa was governed by its white minority and black people were not allowed to vote. Skip Twitter post by @tumisole View image on Twitter  Follow Tumi Sole   ✔ @tumisole # BlackMonday Days like these are interesting as one gets to see the real views. 6:50 AM - Oct 30, 2017   315 315 Replies     1,414 1,414 Retweets     866 866 likes Twitter Ads info and privacy Report End of Twitter post by @tumisole Arts and Culture Ministe...

Image copyright AFP Image caption North Korean leader Kim Jong-un has defied the international community by continuing to test missiles and nuclear weapons A fresh nuclear test at North Korea's mountainous testing site could trigger a leak of radioactive material, South Korea's chief meteorologist has warned. A hollow space of up to 100m in length in the bottom of Mount Mantap could implode, Nam Jae-cheol said. Pyongyang's last nuclear test in early September appeared to have triggered  several landslides . North Korea has conducted  six nuclear tests  since 2006, using the same site test each time. What we know about North Korea's nuclear test site How do you defend against North Korea? North Korea crisis in 300 words "There is a hollow space, which measures about 60 to 100 metres in length, at the bottom of Mount Mantap in the Punggye-ri site," Mr Nam was quoted by South Korean news agency Yonhap as saying. "Should another nuke test occ...