Human activities are changing Earth's spin so much that it might affect how we keep time

You can't tell from standing on it, but Earth's rotation rate is changing.Alexandr Gryzlov / Getty Images Polar ice melt driven by climate change is affecting Earth's rotation, according to … [+5473 chars]

Human activities are changing Earth's spin so much that it might affect how we keep time

Human activities are changing Earth's spin so much that it might affect how we keep time

Human activities are changing Earth's spin so much that it might affect how we keep time

Human activities are changing Earth's spin so much that it might affect how we keep time

Human activities are changing Earth's spin so much that it might affect how we keep time