Displaying items by tag: bees climate change

A bee pollinates an almond tree in an orchard. Concerns are growing that there is an increasing disconnect between pollinating plants and their pollinators due to climate change.  David Kosling/U.S. Department of Agriculture

The problem with climate change isn’t just the temperature. It’s how fast the climate is changing.

This story was originally published by The Conversation. Courtney McGinnis is a professor of biology, medical sciences and environmental sciences at Quinnipiac University.

Historically, Earth’s climate changes have generally happened over thousands to millions of years. Today, global temperatures are increasing by about 0.36 degrees Fahrenheit (0.2 degrees Celsius) per decade.

Imagine a car speeding up. Over time, human activities such as burning fossil fuels, have increased the amount of greenhouse gases in the atmosphere. These gases trap heat from the Sun. This is like pressing the gas pedal. The faster the driver adds gas, the faster the car goes. 

The 21^st century has seen a dramatic acceleration in the rate of climate change, with global temperatures rising more than three times faster than in the previous century.

The faster pace and higher temperatures are changing habitat ranges for plants and animals. In some regions, the pace of change is also throwing off the delicate timing of pollination, putting plants and pollinators such as bees at risk.

Some species are already migrating

Most plant and animal species can tolerate or at least recover from short-term changes in climate, such as a heat wave. When the changes last longer, however, organisms may need to migrate into new areas to adapt for survival.