He calls it the biggest story of our lifetime – and he’s on a mission to make sure that everybody knows it.
Hans Rosling – rockstar data wrangler, global stats icon, Swedish health professor – will use a one-hour BBC TV programme on Thursday to try to convince us we don’t know what we think we know about the world.
This vital truth: the global population boom is fizzling out. “This is a fact that media have missed. It has failed to communicate,” Rosling told the FT.
The rate of growth of the world’s population accelerated sharply over the past half a century, leading to much rhetoric about over-population and exhaustion of the planet’s resources.
But, as Rosling will argue in tomorrow night’s programme, the world’s population is set to plateau by the end of the century. All that Malthusian rhetoric about the population timebomb? Redundant. Read more
Can social media data give useful real-time information during the progress of natural disasters? A group of academics thinks it could.
Researchers from Warwick University in the UK looked at pictures uploaded to Flickr during the lead-up and aftermath of Hurricane Sandy. As the two graphs below show, there was a strong correlation between the number of pictures taken and atmospheric pressure.
Twitter is going public and has been valued at up to $17.4bn, but that could be low as the company could be trying to achieve a large IPO pop once its shares start trading. But what do you think it is worth? What assumptions would you need to make to arrive at this conclusion?
Enter your projections for Twitter’s sales growth, profitability, capital expenditures, terminal growth rate and cost of equity in our IPO calculator below to see how key assumptions affect the potential market value of the social networking firm’s offering. You can then share your valuation with others.
Gentrification and commercial developments are breaking up Chinatowns in US and British cities, squeezing Chinese communities out of the vibrant neighbourhoods that grew up around earlier generations of migrants.
The changing demographics of New York City further highlight this pattern, with Asian communities having sprung up in Flushing and Queens, where they were traditionally focused in Lower Manhattan.
The animated maps above show decadal changes in the spread of localised Chinese and Asian communities in London, New York and San Francisco, created using data from the 2001 and 2011 editions of the UK census and the US censuses of 2000 and 2010. Read more
It is déjà vu time for Sony investors as the Japanese electronics company revises down its income expectations again.
The profit warning is the latest in a slew of downgrades over the past few years – in 2011 Sony infamously downgraded its net income forecasts four times.
The red bars below are Sony’s net income forecasts for 2011 at various times, and the blue bar shows the actual net loss of Y456.7bn.