Humans' collective inability to stem planet-heating emissions — which continue to rise despite pledges to slash them — is largely the result of failures to communicate the risks effectively, government officials and activists said this week.

Even as scientific warnings grow clearer and more urgent, and climate-linked hazards such as more deadly wildfires and destructive storms and droughts affect more people, too few see the rising threats as urgent, they warned.

"Many people still do not seem to fully understand it is impacting our lives today," the U.K.'s Prince Charles told an online event run by the Red Cross Red Crescent movement.