Natural disasters and changes in the environment—from the Krakatoa eruption to climate change—have profoundly shaped human history. Explore both the sudden and long-term impacts of natural and human-made disasters and phenomena.
Carson's 1962 bestseller first warned the public about the devastating effects of chemical pesticides—and started a revolution.
These violent storms have had far-reaching consequences that altered the course of history in surprising ways.
The 2005 hurricane and subsequent levee failures led to death and destruction—and dealt a lasting blow to leadership and the Gulf region.
Railway tracks buckled, people slept in parks, hundreds died, while others tried to die as the heat and humidity became unbearable.
When John Muir and Teddy Roosevelt spent three nights in Yosemite, it would soon pave the way for a National Park Service.
The tsunami was the deadliest in recorded history, taking 230,000 lives in a matter of hours.
It killed 100,000 people in the direct impact. But it led to tens of millions more deaths later.
These wildfires wrought extreme devastation as they roared through neighborhoods and lands in the U.S.
The U.S. Weather Bureau got the forecast completely wrong.
The Tri-State Tornado claimed nearly 700 lives.
One storm left an estimated 8,000 dead in its wake, while an epic flood carried human bodies some 350 miles away.
Millions of people died because of these six catastrophic natural disasters around the world.
The summer solstice falls in June in the Northern Hemisphere. The longest day of the year has inspired celebrations for millennia.
The spring equinox, or vernal equinox, occurs every March. It marks the first day of spring in the Northern Hemisphere.
A earthquake on March 11, 2011 triggered a tsunami...and then a devastating power plant failure.
The fall equinox is the first day of autumn in the Northern Hemisphere. Arriving in September, the day has spawned rituals in many cultures.