.

350 is the most important number in the world.  It marks the safe upper limit of the concentration of carbon dioxide in the atmosphere, as measured in parts per million (ppm), that will support life as we know it on this earth.  Because we have already crossed this threshold, we are currently witnessing dramatic changes in our environment, from melting polar ice caps to dramatic storm events, like droughts and flooding, as well as other harbingers of changing weather patterns.
To learn more, click here:  http://www.350.org/about/science

The concentration of carbon dioxide in our atmosphere is currently at 390 ppm and rising.  Unless we are able to rapidly return to below 350 ppm this century, we will expose our children to unprecedented risks associated with a changing climate.

We are walking 350 miles to symbolize the groundbreaking steps our leaders must take away from a carbon-based economy.  These steps are critical to securing the possibility of a stable environment for our children.

We will not make this journey alone.  We will be joined by friends, supporters, and fellow adventurers.  We will also walk to support the efforts of community groups that we hope will join us along the way.  The camaraderie catalyzed by adventuring together is the type of collective spirit we will need to accomplish the much more challenging journey of addressing climate change.

Finally, our route traverses some of the last, best, roadless areas in Utah.  These wild places are worth preserving because they are places where we can disappear into the grandeur of creation in order to restore hope.  As one Congressman noted, the Wilderness Act was passed to preserve "places where one can truly 'lift up mine eyes unto the hills from whence cometh my help.'"