Evolution in technology is leading to greater efficiency in various industries.

However, there is a one big issue that is scaring a lot of people — robots are going to take over human jobs.

One of the biggest accountancy firms in the world Deloitte released a report today entitled "Global cities, global talent" and it warned that "automation risks 'hollowing out' London's lower paid jobs."

However, at the same time it said 235,000 high-skill jobs have been created in London since 2013.

Basically, those working in lower paid jobs, mainly service and manufacturing sector jobs like cleaning, waitressing, and some factory work, are at the greatest risk of losing their jobs because robots are able to do it instead of them.

The warning comes close after the World Economic Forum (WEF) warned that as many as five million jobs could be lost between 15 major and emerging economies by 2020 due to robots, automation, and artificial intelligence.

The British Retail Consortium also said that 900,000 jobs would be lost in retail across the country thanks, in part, to "robots." It added that almost a third of stores would close by 2025.

Automation on a mass scale has always been concern to economists and employees alike, but we're now starting to get the sense that what was once in the realm of sci-fi is going to have a real, imminent impact on global cities like London.

So who should be worried? The answer has two dimensions.

The first, unsurprisingly, is unskilled workers. Factories which are already heavily reliant on automation will only become more so, taking what few industry jobs the UK still has with it. Public transport may be completely automated within the next three decades, with TFL pushing ahead with plans for Paris-style automated trains and Google Cars perhaps one day replacing taxis.

The internet has already been hugely damaging to the physical presence of the High Street, but Amazon aims to go after delivery jobs too with their own drones. While the US has dragged its feet allowing research and development on such technology, the UK has welcomed it with open arms — along with the corporation's money.

The second dimension is more surprising. The WEF report suggests that women will suffer the automated revolution more severely than their male counterparts. As well as the fact that most of the aforementioned retail jobs are carried out by women, the 2.5 million jobs expected to be created by the "4th Industrial Revolution" are STEM professions (science, technology, engineering and mathematics) which are, currently, heavily dominated by males.

It may not all be bad news though. According to recent reports, a Mercedes factory removed its car-making machines and replaced them with humans. Head of production Marcus Shaefeur said that robots "can't deal with the degree of individualisation and the many variants that we have today."

Perhaps humanity has a shot after all.