Arctic sea ice had weakest winter buildup since record-keeping began [Video]

Arctic sea ice had its weakest winter buildup since record-keeping began 47 years ago, a symptom of climate change that will have repercussions globally, scientists said Thursday.Related video above: Did You Know That Glaciers in Switzerland Have Lost 3-Decades Worth of Ice in the Last 2 YearsThe Arctic reaches its maximum sea ice in March each year and then starts a six-month melt season. The National Snow and Ice Data Center said the peak measurement taken Saturday was 5.53 million square mile — about 30,000 square miles smaller than the lowest previous peak in 2017.That’s a difference about the size of California.Scientists said warming conditions in the Arctic — the region is warming four times faster than the rest of the world — affect weather elsewhere. Pressure and temperature differences between north and south shrink. That weakens the jet stream, which moves weather systems along, making it dip further south …