A recent report by the Intergovernmental Panel on Climate Change (IPCC) suggests that we’ve probably lost our chance to keep the planet’s temperature within a safe zone for humanity, which would require limiting global warming to just 1.5 degrees Celsius (2.7 degrees Fahrenheit) over pre-industrial times. Doing so would mean entirely transforming the world’s diet, agriculture practices and energy infrastructure ...

IBM just made the cloud-computing war far more interesting. International Business Machines Corp. announced that it’s buying Red Hat Inc., one of the most successful pioneers of a software movement known as open source, which allows programming instructions to be accessible to anyone to view and alter. Red Hat’s version of the Linux open-source software became widely used in companies’ ...

Europe’s leaders are engaged in a high-stakes standoff with Italy, trying to coerce the populist government to drop its budget-busting spending plan. But how far can they go? Can they risk pushing Italy out of the currency union? Judging from the exposures of French and German banks, they have a strong incentive to seek a compromise. Looking at what banks ...