The length of annual heat streaks — the number of consecutive hot days — is increasing in these cities.
Here's how the number of days with extreme heat will rise in the second half of the century.
Trends in nighttime temperatures are a symptom of a world warming from from climate change.
Here’s how climate change plays a role in tick migration and the spread of Lyme disease.
See the trend in hot days in these U.S. cities.
A small increase in average temperature leads to a big increase in extreme heat.
Warming waters are decreasing oxygen in the oceans, creating dead zones for marine plants and animals.
Excessive carbon emissions are worsening the ocean's health.