Hydrogen cars and vehicles that capture their tailpipe pollutants. Computer mice made from recycled ocean waste plastic. Hundreds of millions of trees planted in the desert. Saudi Arabia's vision of an environmentally friendly future is on display just a short drive from the venue of the U.N. climate summit being held in Egypt.
What's not highlighted in the glossy gallery are the earth-warming fossil fuels that the country continues to pump out of the ground for global export. Fossil fuel emissions are the reason why negotiators from nearly 200 countries have gathered at the annual two-week conference, haggling over how pollution can be cut and how fast to do it.
