Risques du monde d'aujourd'hui et du "monde d'après" : changement climatique, pollution, santé, modes de vie, démographie, crises sociales, cyber......)

Solving many of the world’s biggest environmental challenges may have just gotten more difficult.

The Department of Economic and Social Affairs of the UN recently released population data indicating the midline estimate - more than 10.8 billion by 2100 - is 800 million higher than the 2010 prediction.

Today’s rural-to-urban migration will continue in full force, with upwards of 84% of the planet living in cities at the close of the century (compared to 52 % today).

Of course population isn’t the only factor contributing to humans’ planetary impact. Consumption may be equally important when looking at the drivers of environmental change across the Earth. Nevertheless, population will continue to be a major consideration as we work to address issues ranging from energy and food security to water availability, species loss, pollution, urban planning and more in the decades ahead...

Deforestation has long been cited as a problem, but a lack of accessible data meant that the general public had to take someone's word for the figures. As a result, its threat always seemed more abstract and nebulous than, say, climate change or rising sea levels.

Until now: Google has unveiled its Global Forest Watch, an online tool that monitors deforestation around the world in near-real time.