Back to Top Symptoms. The classic symptoms of bronchitis may be like those of a cold. You may have a tickle in the back of your throat, which leads to a dry, irritating cough. As the infection gets worse, you may cough up thick, yellow mucus that may (rarely) be streaked with blood.ack to Top Symptoms. The classic symptoms of bronchitis may be like those of a cold. You may have a tickle in the back of your throat, which leads to a dry, irritating cough. As the infection gets worse, you may cough up thick, yellow mucus that may (rarely) be streaked with blood.
Global warming and climate change are terms for the observed century-scale rise in the average temperature of the Earth's climate system and its related effects. Multiple lines of scientific evidence show that the climate system is warming.
How greenhouse gases affect global warming. The gases in the atmosphere that absorb radiation are known as greenhouse gases (sometimes abbreviated as GHG) because they are largely responsible for the greenhouse effect. The greenhouse effect, in turn, is one of the leading causes of global warming.