University of Maryland Extension

Climate Change and Gardening

dry cracked soil

 

Climate Change is Real and is Affecting Maryland Now

There is no scientific controversy: 99% of scientists agree that our climate is changing and that global temperatures are increasing as levels of heat-trapping greenhouse gases rise in the atmosphere (CO2, methane, nitrogen dioxide, water vapor).

Global measurements of temperaturesince weather records began in 1884 show a clear long-term trend toward warming. The animation below shows a clear trend in temperature, even though there can be substantial year-to-year and place-to-place variation in weather. 


ABOVE: Yearly observations of global temperatures since 1884. This animation shows the temperatures across the globe as differences from the average temperature between 1951-1980 (the baseline):  blue shows areas cooler than that baseline, while yellow-orange shows areas warmer than the baseline. Although there is considerable variation in temperature from place to place and year to year, the overall trend is clearly toward warming.

Maintained by the IET Department of the College of Agriculture and Natural Resources. © 2020. Web Accessibility

University programs, activities, and facilities are available to all without regard to race, color, sex, gender identity or expression, sexual orientation, marital status, age, national origin, political affiliation, physical or mental disability, religion, protected veteran status, genetic information, personal appearance, or any other legally protected class. If you need a reasonable accommodation to participate in any event or activity, please contact your local University of Maryland Extension Office.