In Southwestern PA, at 7:30 am the temp is 52 degrees F. In July? How do you explain that? The predicted high is 76 degrees. Can we do something to speed up the global warming?
2007-07-02 00:36:30 · 21 answers · asked by regerugged 7 in Environment ➔ Global Warming
I always find it amazing that when the when the weather is hotter than normal it is proof of global warming. When it is colder, it is just a regional variation and we must look at the longer trend.
2007-07-02 05:10:07 · answer #1 · answered by eric c 5 · 2⤊ 2⤋
You're confusing "weather" with "global warming" and "climate change."
"Weather" is the term for meteoroligcal conditions over a certain area at a specific time (e.g., sunny skies and 73 degrees in New York on Monday).
"Global Warming" is the increase in the AVERAGE temperature of the Eath's surface and ocean temperatures due to the accumulation of human-produced greenhosue gasses. This is an observable fact (by this I mean scientists worldwide are seeing this happening now ), which I'll expain in a second.
"Climate Change" is when changes in atmosphereic conditions cause long-term changes in a regional climate. For example, a warmer planet could mean drought in the rainforets OR blizzards in Africa-- the whole climate system as we know it becomes screwy. Scientists currenty see this in the north and south poles (aka, polar bears becomming extinc, penguins dying off, melting iceaps, bears no longer hibernating, etc). Yes, the earth goes through a natural climate change cycle every several thousand years( e.g., ice ages and warming periods), however the changes we're seing today are occuring thousands of years ahead of schedule because of global warming.
Back to Global Warming...
According to the Intergovernmental Panel on Climate Change (IPCC), the world's organization of top meteorologists and climatologists, the global average air temperature near the Earth's surface have already risen between .32 and .1.3 degrees Fahrenheit. The IPCC says that if greenhouse gas emmissions aren't reduced soon, then in the next 100 years the Earth's surface temperature will likely increase 2 and 11.5 degrees Fahrenheit.
2007-07-02 04:42:23 · answer #2 · answered by crackaboy79 2 · 2⤊ 3⤋
It is already here. There are no glaciers near your house are there? The idea that it will be 100 degrees all over the world or whatever is nonsense. It might get 1 or 2 degrees warmer, on average. But people who think it will be hot summer forever starting soon because of global warming are just ignorant.
2007-07-02 04:36:57 · answer #3 · answered by campbelp2002 7 · 4⤊ 2⤋
Of course it is irrelevant what the temperature is on any particular day. But try plotting the average annual temperature over the last hundred years on a graph, and you would see some indication that global warming is already here.
2007-07-02 06:21:41 · answer #4 · answered by rollo_tomassi423 6 · 0⤊ 2⤋
Go to http://www.accuweather.com/global-warming/index.asp and look at the graph. Most places are a degree warmer in the last few years. The warming has happened, and will accelerate as positive feedback kicks in. Your tiny data point doesn't prove anything.
2007-07-02 06:31:33 · answer #5 · answered by russ m 3 · 0⤊ 2⤋
Short term weather can do anything.
The graph below is very educational. Look at how the temperature jumps around year to year. But the 5 year average shows clearly what's happening.
http://www.globalwarmingart.com/wiki/Image:Instrumental_Temperature_Record_png
And that's an average of the whole world. The weather in one place is even more jumpy.
Good website for more information, data, and pictures:
http://profend.com/global-warming/
2007-07-02 01:52:27 · answer #6 · answered by Bob 7 · 3⤊ 3⤋
Hopefully not soon. If you want warm weather move south! I live in western Pa, and it was 49 this morning.
2007-07-02 01:43:23 · answer #7 · answered by thinkGREEN 3 · 1⤊ 0⤋
i have been sitting in 45 degrees celcius for 3 weeks
at night i sleep in a hammock in the draft under a fan
will it ever get cold again
2007-07-02 19:11:24 · answer #8 · answered by Anonymous · 0⤊ 0⤋
You can't derive global mean temperatures from a regional weather event. One cool day or one cool month has no affect whatsoever on global temperatures. I know the idea must seem positively titillating to you. But I promise you, it just doesn't work that way.
Sorry.
2007-07-02 01:27:21 · answer #9 · answered by SomeGuy 6 · 3⤊ 3⤋
Nor can you base your opinions on global warming from only like 600,000 years of data when the earth has been around for billions of years....
Katrina...as horrible as it was, was a ticking time bomb...New Orleans was asking for a hurricane to destroy their town...didnt take enough precautions... so if global warming is increasing the strength and number of hurricanes, please explain to me last year's hurricane season? Wasnt last year suppose to be the worst on record....ummmm ya story not so solid any more is it?
2007-07-02 01:26:59 · answer #10 · answered by Dan Da Man 3 · 3⤊ 3⤋