How Global Warming Works

Climate scientists now overwhelmingly agree that a general warming of the planet is under way and that human activity is the major cause. They warn, in fact, that we're rapidly approaching a tipping point, where the impacts of global warming could become catastrophic and irreversible. The question now is whether we're willing to change our course before it's too late.

The two main sources of global warming pollution are coal-fired power plants and the internal combustion engine. As they burn their fuels, they release carbon dioxide and other greenhouse gases into the atmosphere. Like rolled up car windows on a sunny day, the excess gases trap and hold additional heat, causing the planet’s average temperature to rise. We can see the consequences already around the world, in melting glaciers, rising sea levels, more violent storms and other weather extremes.

The Impact on Arkansas

Scientists estimate that average global temperatures will rise another 3 to 7 degrees Fahrenheit by the end of this century. Even at the lower end of that range, this would have a major impact on our state. Arkansas is particularly susceptible to climate disruption, as air masses from the Gulf of Mexico, the Pacific and the Arctic often collide here. We could see more severe rainstorms, rather than sustained, gentle showers, and more extreme dry spells as well, which would mean more flooding and soil erosion.

Damage to Wildlife

Rising temperatures also threaten Arkansas’ forests, wetlands and other wildlife habitat, with harmful impacts on our migratory birds. When states north of us have warmer winters, ducks and other waterfowl don’t have to fly this far south to find ice-free waters. We’ve already seen a dramatic drop in Arkansas duck populations, and further declines are projected, with serious implications for our sportsmen and for tourism.

Dangers to Health

Global warming also means more severe heat waves are likely, resulting in more heat-related illnesses and deaths, especially among our elderly. In addition, with changes in temperature, rainfall and humidity, Arkansas could see an increase in water- and insect-borne diseases.