|Animation shows the evolution of the Arctic sea ice cover from its wintertime maximum extent, which was reached on March 24, 2016, and was the lowest on record for the second year in a row, to its apparent yearly minimum, which occurred on September 10, 2016, and is the second lowest in the satellite era.|
Wednesday, September 21, 2016
Wednesday, September 14, 2016
|August 2016 was the warmest August in 136 years of modern record-keeping. Although the seasonal temperature cycle typically peaks in July, August 2016 wound up tied with July 2016 for the warmest month ever recorded. August continued a streak of 11 consecutive months (dating to October 2015) that have set new monthly temperature records.|
With temperatures that were 0.55 C (about 0.99° F) warmer than seasonal norms, August 2016 was the warmest August in the Northern Hemisphere in the satellite temperature record.
|2014 set the record at the time for the hottest year — and then 2015 crushed that record, now NASA says there is a greater than 99 percent chance 2016 will far surpass 2015.|
Wednesday, September 7, 2016
| In the Arctic, climate change is accelerating at a frightening pace because it’s warming twice as fast as the rest of the world. One of the obvious indicators of this is melting Arctic sea ice.|
Thirty years ago the sea ice in the Arctic Ocean was mostly old, thick ice that survived year-round. It was surrounded by seasonal ice that was younger, thinner, and more vulnerable to changing temperatures. But with climate change, Arctic sea ice can't withstand the warming heat in the summer.
|Sea ice is bright and reflective: more than 80 percent of the sunlight that hits it is reflected back into space. But when sea ice melts, the dark ocean surface is exposed which absorbs 90 percent of the sunlight striking it ... the albedo effect. And when oceans become warmer, more sea ice melts, and this is another positive feedback loop.|
Thursday, September 1, 2016
|A new report by the Population Reference Bureau predicts the world’s population could reach 9.9 billion by 2050, which exceeds the current UN predictions suggesting 9.6 billion people.
There is already an estimated 7.6 billion people on Earth today, so if this prediction is true, the global population will see an increase of 33 per cent in 35 years.|
While both the UN and PRB reports predict Africa to see the most rapid population growth during this period, the developed world will also see a surge.