Chairman Pachauri's remarks are a poignant reminder of the urgency of this situation. Let's come together on October 24th for the 350 Day Of Action to show the world's leaders that we humanity want to do everything in our power to bring the CO2 atmospheric concentration back down below 350! And let's remember that every day can be a Day Of Action in our home places across the world. We are all in this together.

I understand and believe the urgency - but we need to stop talking and writing about it and get busy doing something about it. Time is running out for our civilization - our children's children may not be able to survive on this planet in 50 years.....so, what's happening to change the tide!!?? I don't see the United States leading the charge or changing its ways.
Melinda Moulton
CEO/Redeveloper
Main Street Landing
...........and concerned Grandmother!

Dear 350, and my fellow green-thinking compatriots:
I am with you. We need to stop producing greenhouse gases, in an effort to preserve a climate that is favorable towards human proliferation and good quality of life. I voted for Obama and called my congressman to support his climate bill.
I am someone who has done extensive research/reading into climate change. I know many scientists in the field of atmospheric kinetics and global climate change.

This in mind, we can NOT set a "baseline" of carbon dioxide in the atmosphere. There is still little to no data correlating global temperature to carbon dioxide emissions. Furthermore, we do not understand, even in the slightest, the role that the oceans play in sequestering and emitting carbon dioxide. We furthermore do not understand how the temperature of the earth is correlated to greenhouse gas. The albedo (color) of the earth's surface may have far more to do with the temperature of our lovely earth than the gas makeup. Even more concerning is that arctic core sample show carbon dioxide levels at 18 times their current amounts in prehistoric periods.

One piece of data I do find highly disturbing is the CO2 levels recorded at Mauna Loa observatory over the last ~100-200 years. If you can find this data, you will see that the industrialization of the world has led to a SHARP spike in CO2 prevalence in the atmosphere. This is concerting in the sense that we are definitively changing the gaseous makeup of our fragile ecosystem. I am a full advocate of reducing carbon emissions drastically, and converting our energy sources to clean and renewable ones that ensure future generations. HOWEVER a magic number such as 350ppm has no real scientific basis and should be regarded as whistle blowing. Please understand I am fully behind the cause, but that I do not believe this is truly not the path to reform.

"HOWEVER a magic number such as 350ppm has no real scientific basis and should be regarded as whistle blowing"

The suggested target of 350ppm comes from this peer-reviewed scientific paper: "Target Atmopsheric CO2: Where Should Humanity Aim", Hansen et al, published in 2008. This paper is accessible in google scholar, and I highly suggest you read it.

Cheers.

"HOWEVER a magic number such as 350ppm has no real scientific basis and should be regarded as whistle blowing"

Without a clear goal like 350 ppm people are helpless to act. Sounds like 350 is a "reasonable" number or the best "educated guess" so why not go with it? The only other option seems to have us all waste a lot more time debating instead of taking actions we all know we should take. What if we debate while we move in the agreed direction with 350 as our first turning point?

This urgency is very serious and action must be taken. I do feel that since it is so important that we must find economical methods of doing so and stop with all the people who are only trying to get rich from the situation. casino

Hi there,

Phil from 350.org here. I just wanted to provide a link to the science section of our website, that provides the scientific basis for the 350 campaign. Read it and you'll see that we didn't just pull 350 out of a hat; Many of the planet's top scientists believe that it's the top end of the safe level of CO2 in the atmosphere:

http://www.350.org/about/science

Just to point out Rajendra Pachauri is NOT a scientist - he is an economist and industrial engineer with PHDs in both disciplines!

BREAKING: Top UN Scientist Endorses 350! - Very good news.

This is great! We need more of our countries to band together and make a difference! If we all do what we can, we can help our nation. Which will help others countries make changes. That will help our planet.

I agree with the implementation of a number goal. ideally it should be far lower than 350, but you cant tell a story till you know where its going. In my opinion, i feel that one of the largest and most overlooked contributors to excessive Co2 emissions is the over population of the human race.

I am headed to Macedonia to volunteer for the Peace Corps and i hope to be able to start an 'action' there, with the collaborative efforts of US and Macedonian citizens.