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Water is needed for development, production and consumption, yet we are overusing and polluting an unsubstitutable resource and system. Eight safe and just boundaries for five domains (climate, biosphere, water, nutrients and aerosols) have been identified beyond which there is significant harm to humans and nature and the risk of crossing tipping points increases. Humans have already crossed the safe and just Earth System Boundaries for water. To date, seven of the eight boundaries have been crossed, and although the aerosol boundary has not been crossed at the global level, it has been crossed at city level in many parts of the wo...... Read Full article on GretAi

As the world rushes to make use of the latest wave of AI technologies, one piece of high-tech hardware has become a surprisingly hot commodity: the graphics processing unit, or GPU. A top-of-the-line GPU can sell for tens of thousands of dollars, and leading manufacturer NVIDIA has seen its market valuation soar past US$2 trillion as demand for its products surges. GPUs aren’t just high-end AI products, either. There are less powerful GPUs in phones, laptops and gaming consoles, too. By now you’re probably wondering: what is a GPU, really? And what makes them so special? What is a GPU? GPUs were originally designed primarily to qu...... Read Full article on GretAi