What else can you do to reduce global warming?

One of the tipping points with global warming is that as ice sheets melt, they are no longer available to reflect Sunlight back into space.  Depending on location, they are replaced by darker sea or land which absorbs more sunlight.

A simple solution: paint your roof white.  How will this help?  Not very much actually, if you're the only one.  But if enough of us do it ... work it out for yourself.

US President Obama's climate guru thinks so too:

http://www.independent.co.uk/environment/climate-change/obamas-climate-guru-paint-your-roof-white-1691209.html

Sync your desktop & phone with a single photo

A soon to be released app will allow you to open Google Maps on your phone at the same map you have just opened on your desktop screen. 

http://www.newscientist.com/blogs/onepercent/2011/06/desktops-and-mobiles-married-b-1.html

Hybrid cars give flywheels a spin

One of the ways that hybrid cars improve economy over other vehicles is by regenerative braking.  I.e when a hybrid slows down, it stores it's kinetic energy (energy it has because it is moving).  In Toyota, General Motors & Honda hybrids, the energy is stored as electricity in batteries.

This New Scientist article is about the possibility of storing energy from regenerative braking in a flywheel.  Proposed advantages are weight & cost: 

http://www.newscientist.com/article/mg21028165.600-hybrid-cars-give-flywheels-a-spin.html 

One problem with electrical regenerative braking is that the amount of energy that can be recovered is limited by how fast the battery can accept charge.  Hopefully, a flywheel based regenerative braking system would overcome this limitation.