In 1966 the state company Azucarera Tropical Americana S.A. (AZTRA) was installed in the province of Canar as a pole of development in the area. High temperatures are needed to elaborate sugar. This was obtained from combustion of crushed sugar cane waste. As a result from this combustion, an enormous amount of ashes and smoke came out of the chimneys of the factory. Health and environmental damage to humans reached such high levels that the population mobilized demanding from the company the introduction of technological improvements in order to avoid contamination from combustion.