My original heading was “GLOBAL WARMING MUCH GREATER THAN TODAY OCCURRED 1000 AD” but LinkedIn would not accept it. Global warming is a no-go zone for negative stories.

A snow patch on the top of the Bear tooth Mountains of north central Wyoming, USA, has been melting because of a warming climate. Consequently, 30 fallen white bark pine trees became exposed, 180 m (600 ft) above the current tree line. The trees were tall-standing in form and not the scruffy sort usually found near the tree line. This indicates that the tree line was once even higher than 180 m above today’s.

Picture of Bear Tooth Mountain, Montana

Since a higher altitude means colder temperatures, the higher tree line suggested by the exposed trees means that the climate must have been warmer in the past, when these trees were growing.

Since the post-Flood Ice Age ended some 4,000 years ago, there have been several warm periods. The most recent one is known as the Medieval Warm Period, a 300-year period around AD 1000. Since the snow patch is melting now, the exhumed forest suggests that the world has experienced global warming in the past, which is significantly greater than what is being experienced now.

This report shows why it is so important to have a Biblical worldview, which presents the true history of this world. The world only has a 4 billion-year history because it denies the Bible’s worldwide flood of Noah’s day that buried all living things and the abundant pre-flood forests and vegetation (source of fossils and fossil fuels).

Pederson, G.T. et al., Dynamic treeline and cryosphere response to pronounced mid-Holocene climatic variability in the US Rocky Mountains, Proceedings of the National Academy of Sciences 122(2): e242162121, 2025.