something like three, maybe as high as 5 billion tons by mid century. now, if you add all of those up, you are talking about 10 billion tons of c02 removal by mid century. that might seem like a lot but comparing it to our current emissions, which are 35 billion tons of c02, it only represents about a third of the solution. and so, that means to deal with the other two—thirds, we need to get much more energy—efficient and if, on top of that, carbon removal technologies can help us along the way, then that is great, but let's not pin our hopes on those technologies alone. hello and welcome to the week in tech. it was the week uk schools paused the use of facial recognition on children to take lunch payments, just days after it was introduced. the us revoked china telecom's license to do business in the states, citing national security concerns. and amid whistle—blowers�* claims of prioritising profit oversafety, facebook revealed its quarterly profits of $9 billion, that's up by 17%
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