To cut down on climate-heating emissions, many people advocate taxing them at the source.
For a carbon tax to have the best chance of success, stakeholders have to buy in for the long haul. Seventy-five businesses with a combined market cap of $2.5 trillion are calling on the U.S. Congress to pass a carbon tax - to combat climate change. The group includes organic food brands, tech firms like Microsoft and Tesla and big oil producers like BP and Shell. CGTN's Giles Gibson reports. Coal-mining is partly to blame for making South Africa one of the African continent's worst polluters.
Now, as South Africa tries to fight climate change, businesses have begun paying a carbon tax.
Al Jazeera's Haru Mutasa reports from Emalahleni in Mpumalanga province. The possibility that an American Airlines mechanic has ties to ISIS has raised concerns over how to properly vet airline workers. NBC News' Juan Zarate breaks down the challenges of weeding out criminals and the steps airports should be taking to avoid possible terrorist attacks.