one for the greenies, page-14

Temperature change depends greatly on where on Earth you are measuring. The Southern UK for example is getting colder because global warming is changing the ocean currents that flow acros the Atlantic from the Gulf of Mexico. Most of the Earth is warming up as this graph of average temperatures in the US shows.



It looks like the temperature is going up further from the graph, doesn't it?

From The US Environmental Protection Agency (EPA):

Changing Climate
Global mean surface temperatures have increased 0.5-1.0°F since the late 19th century. The 20th century's 10 warmest years all occurred in the last 15 years of the century. Of these, 1998 was the warmest year on record. The snow cover in the Northern Hemisphere and floating ice in the Arctic Ocean have decreased. Globally, sea level has risen 4-8 inches over the past century. Worldwide precipitation over land has increased by about one percent. The frequency of extreme rainfall events has increased throughout much of the United States.

Increasing concentrations of greenhouse gases are likely to accelerate the rate of climate change. Scientists expect that the average global surface temperature could rise 1-4.5°F (0.6-2.5°C) in the next fifty years, and 2.2-10°F (1.4-5.8°C) in the next century, with significant regional variation. Evaporation will increase as the climate warms, which will increase average global precipitation. Soil moisture is likely to decline in many regions, and intense rainstorms are likely to become more frequent. Sea level is likely to rise two feet along most of the U.S. coast.

Calculations of climate change for specific areas are much less reliable than global ones, and it is unclear whether regional climate will become more variable.

Ozone Depletion
CFC refrigerant gases have the effect of consuming ozone molecules. The problem is that as each CFC molecule destroys an ozone molecule, it is not consumed itself and is free to move on to destroy another and another ozone molecule.

The real issue is climate change in areas of interest, ie where people live or grow crops and food etc. Drier weather or more rain or colder weather in local areas can cause famine by making the local climate unsuitable for the historic usage patterns.

So don't just refute global warming and climate change because it is happening and it will affect us.

Somebody said that increased solar activity is causing global warming. Well duhh! where else is the heat coming from???