Today is February 22 of 2112. And today Id like to talk about how ourworld reverted the climate change and avoided the earth environment and mankinddestruction. I choose to talk about these things today because this is a veryspecial day for me. Today is my 100th anniversary, and I say how allthese things happened. I was bornin a year when many people believed that would be the end of the world. Thisbelief was related to a certain Mayan calendar, but I never understood therelationship between one thing and another. In fact, I grew in a world that wasturning at same time better and worse. Better, because every day new wonderfultechnology appearing, bringing the promise of getting better peoples life.However, just a few people could access these technologies. I was born in Sao Paulo country, in Brazil.When I was a child, there were a lot of sugar cane fields around the place Ilived. At that time, many people believed that sugar cane was the best optionas a sustainable energy. However, the mankind was destroying the world, andthese cane fields toke a part of this destruction. The year I was born, 2012,presented the historys highest and the lowest temperatures. Despite theeconomic crisis on Europe that helped to reduce the carbon emissions, it lookedlike the world climate was already jeopardized. Powerful hurricanes, devastating drought, and North Pole glaciersmelting was the final warning. Something needed to be done. I was 12 or13 when changes started. For years, several sophisticated plans were proposedto revert the climate changes. However, the situation was so critic that a lotof crazy plans were executed. Big machines were built in order to remove the CO2from air. Giant algae tanks were air insufflated in order to produce carboncompounds. An unprecedented massive reforestation program was started, andmillions of little mirror was put in orbit, in order to reduce the Sunradiation on the surface of the Earth. All these initiatives spent a lot of money and hard fossil fuel taxeswere charged, making automobiles a luxury. All production chain was affected,but all people treated this issue as a war effort. Food, water, fuels andenergy began to be rationed. After someyears, people realized that humanity wasted a lot of resources. Due to thefuels elevated prices, people began to use high efficiency electric cars andbicycles. Electronics and appliances were designed to use less energy and lastmore time. Streetlights began to be automatically turned off when no people onstreets. Garbage began to be 100% recycled in order to reuse materials or toproduce energy. Peoplebegan to contribute, since they realized that their lives depended on thesecontributions. Companies began to promote home office in order so save energyand the waste began to be intolerable. Weapons and low quality productsproduction was suspended. When I wasattending college, a new technology arrived. Due to all changes in the world inconsequence of the new energetic paradigm, a log of hydrocarbons began to beavailable. Oil price got down, but nobody though about backing to the oldhabits. However, people realized that oil is a too noble raw material to beburned. In that time, the nanotube polymer technology