Stuttering occurs when the natural flow of speech is interrupted. When the child involuntarily prolongs sounds, is unable to produce certain sounds, or repeats a sound, we can say he or she is at risk for stuttering. Stuttering will usually begin between the ages of three and six.
It is significant that so much carbon dioxide stays in the atmosphere because CO 2 is the most important gas for controlling Earthâs temperature. Carbon dioxide, methane, and halocarbons are greenhouse gases that absorb a wide range of energyâincluding infrared energy (heat) emitted by the Earthâand then re-emit it.
Methane is the primary component of natural gas, a common fuel source. Why are we concerned about it? If methane is allowed to leak into the air before being usedâfrom a leaky pipe, for instanceâit absorbs the sunâs heat, warming the atmosphere. For this reason, itâs considered a greenhouse gas, like carbon dioxide. Is it as important to address as carbon emissions? While methane doesnât linger as long in the atmosphere as carbon dioxide, it is initially far more devastating to the climate because of how effectively it absorbs heat. In the first two decades after its release, methane is 84 times more potent than carbon dioxide.