In response to a March 20 letter: Climate evidence shows global warming nonexistent in your dreams.
Thousands upon thousands of scientists worldwide have provided evidence that the Earth's mean surface temperature has increased by about 1.4 degrees Fahrenheit since the 20th century. Warming of the climate system is unequivocal. Scientists are 90 percent certain that the cause is increased greenhouse gasses produced by humans burning fossil fuels and deforestation. Those are the facts.
The information the letter writer provided is, unfortunately, fabrication. The organization cited is a small group of global warming skeptics, now defunct, funded by The Heartland Institute, who disagree with the insurmountable scientific evidence readily available to all of us.
We may all have our own opinions, however facts are facts.