Hard Numbers: Guess Which Industry will be Worth $13 Trillion by 2050

9.7 billion: A new UN Population Division report projects that the global population will hit 9.7 billion by 2050, up from the current 7.7 billion. Most of that population growth will come from sub-Saharan Africa, which is expected to add another billion people over the next three decades.

13.3 trillion: In other projections to the year 2050, energy trackers at BloombergNEF estimate that the 62% increase in electricity demand over the next three decades will bring in $13.3 trillion in new investments, with $5.3 trillion going to wind and $4.2 trillion to solar. That's a lot of power but sweeping policy changes will still be needed to hit global climate targets.

9,000: Bitcoin, the world's original cryptocurrency, surged past $9,000 this week to a 13-month high following the news of Facebook's plan to launch its own digital currency and payment system. The prospect of the world's biggest social network moving into the crypto space has seemingly legitimized an industry that's been struggling with growth problems, fraud, and volatile prices.

1,232: Local authorities in Berlin this week approved a plan to freeze rent hikes in the city for the next five years as the German capital has become a major destination for European job seekers. Currently, the average monthly rent in Berlin is about $1,232, a 7% jump over the first three months of this year.

The Business and Market Fair that recently took place in Sanzule, Ghana featured local crops, livestock and manufactured goods, thanks in part to the Livelihood Restoration Plan (LRP), one of Eni's initiatives to diversify the local economy. The LRP program provided training and support to start new businesses to approximately 1,400 people from 205 households, invigorating entrepreneurship in the community.

Learn more at Eniday: Energy Is A Good Story

Are we seeing the creation of a parallel universe for US and Chinese tech industries?

I think the answer is yes. In the past, US has dominated the world in technologies from P.C. operating systems, semiconductors, to servers, and even Internet. But ever since the rise of mobile technologies, China has really leveraged the large market with a huge amount of data and now is beginning to innovate and build great mobile apps on which there's a large amount of data being collected.

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It's been two months since President Trump abruptly ordered the withdrawal of US troops from northern Syria, paving the way for a bloody Turkish offensive in that region. (See our earlier coverage here.) What's happened since? A guide for the puzzled:

No "end date" for US troops in Syria – US Secretary of Defense Mark Esper said this week that the United States has completed its military pullback in northeastern Syria. Back in October, President Trump pledged to withdraw the roughly 1,000 American troops deployed there. Since then, some American troops have left Syria altogether, while others were redeployed to defend nearby oil fields from ISIS, as well as from Syrian government troops and Russia. Now, there are roughly 600 American troops dispersed around Syria, and the remainder have been deployed in Iraq to stave off a potential ISIS resurgence. It's not clear if any troops have returned to the US. When asked about the chaotic comings and goings of US troops in Syria in recent months, the commander of US Central Command said frankly: there's no "end date" for American troops stationed there.

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Turkey's government has captured many thousands of ISIS fighters as a result of its operations in northern Syria. Many of these prisoners have already been deported to some of the more than 100 countries they come from, and Ankara says it intends to send more. There are also more than 10,000 women and children – family members of ISIS fighters – still living in camps inside Syria.

These facts create a dilemma for the governments of countries where the ISIS detainees are still citizens: Should these terrorist fighters and their families be allowed to return, in many cases to face trial back home? Or should countries refuse to allow them back?

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