Personal computing has been the realm of keyboard+mouse for almost 30 years, but the multiplicity of cheap sensors that is arriving will allow for complex tasks taking advantage of a variety of peripherals, each one good for a particular interaction modality: 3D input, direct selection by touch instead than by a remote cursor, wide gestures for navigation between tasks... they can be done now with more than mouse selection and key combos. That's true either for collaboration (that is not going to disappear even if works are no longer in the office) or for isolated thoughtful work. A single worker will want to take advantage of multimodal interaction and separate information surfaces to keep track of different subtasks and for multitasking, which are difficult to do on the traditional desktop metaphor.
This is the kind of thinking that gave us Gnome 3 Shell and Unity. Quite frankly I and almost everyone else I know is quite happy with a 2D interface, keyboard and mouse for most tasks. I certainly find almost anything else including the new whizz-bang phone-on-a-desktop interfaces rather less productive and after a while, irritating. I don't want to wave my arms around, swipe or pinch things, or indeed have my handwriting translated or talk to a machine. These sort of things are entertaining for adolescents who don't need to make a living and are fine for tiny amounts of interaction on a phone but don't scale up too well. They are gimmicks like 3D TV - solutions to problems that don't exist. There is a reason that the 2D, menu based interface has been around so long and it isn't that there was a lack of technological capability to make something better. The reason is that it works well and people like it.
Animals releasing methane don't have anything to do with global warming, since that's already part of the carbon cycle. Fossil fuels are the issue.
They surely do. They would only be a natural part of the carbon cycle if they existed in sustainable numbers. Unfortunately there is an increasing amount of livestock being bred to satiate the market for animal products, both in the west and the rapidly expanding markets in the east. In the east, it is increasingly seen as being desirable to copy western patterns of consumption and this includes adopting a western style diet high in animal products. The by-product is both increased methane production and the expansion of factory style farming which also entails high energy input.
The trouble with opportunity is that it always comes disguised as hard work. -- Herbert V. Prochnow