FROM Peter Kareiva
Species Extinction and Biodiversity The human contribution to climate change is one of the major themes at this week's meeting of world leaders at the United Nations. People are also accelerating the extinction of other species. The World Conservation Union's ' Red List ' reports that 25 to 30% of mammals and amphibians are endangered along with 70% of plants—all because of human activities. Why should we care? What's the economic value of biodiversity? What does it have to do with our own species' survival?
Terrorism and tweets, hate speech and murder Just days before an election, Britain is coping with a rash of deadly terrorism, and Prime Minister Theresa May is on the defensive. And again today, President Trump has tweeted criticism of the Mayor of London. Later, a double murder in Portland, Oregon has revealed the ugly past of a supposedly “progressive” city. One immediate question: is “hate speech” protected by the First Amendment?
Venezuela spirals into economic and political chaos Venezuela, a country whose potential for prosperity is unmatched, finds itself on the verge of civil war. What sustains the repressive government? With time running out, guest host León Krauze looks at what the international community can do to pull the country from the edge of collapse.