Estando a 4,500 pies el Observatorio es afectado menos por la polución ligera que otros. Es afortunado que hay sólo unos pueblos directamente al sur en la costa que como las moscas del cuervo es aproximadamente 10 millas away.  

En un buenas noches usted el efecto pequeño de polución ligera y en pobres en ciertas direcciones usted pierde aproximadamente 10 grados. 
El Observatorios de Sierra Nevada está empezando a ser afectada en serio por las luces de Ciudad de Granada y el año pasado lanzó una campaña seria contra la Polución Ligera.

Being at 4,500 feet the Observatory is affected less by light pollution than others. It is fortunate that directly south there are only a few villages on the coast which as the crow flies is about 10 miles away. 

On a good night you little effect of light pollution and on poor ones in certain directions you lose about 10 degrees.

The Observatorios de la Sierra Nevada is starting to be seriously affected by the lights of Granada City and last year launched a serious campaign against Light Pollution.

- los Cauces-se han re-puesto muchos cauces usando hormigón y tubos. Se supone que esto es más eficaz pero esto ha causado la granja para perder el acceso para regar, la corrosión de la tierra, árboles y vegetación que tiñen y la vida salvaje devastó. 

- la Mesa de Agua-Menos agua está empezando el valle y el río principal tiene menos agua en él todos los años esto significará que la mesa de agua está poniéndose más bajo cada año. Normalmente la tierra de arcilla en este área detiene el fondo del valle y otra área de secar completamente fuera pero yo creo que esta tierra de arcilla está empezando a secar fuera su ego y crujir allí para más agua ahora está siendo lost. 

Por aquéllos que vienen entonces del REINO UNIDO igualan el Alpujarras con el Distrito del Lago e imaginan el Lago Windermere vacían de agua o para aquéllos de Alemania iguálelo con las Montañas de Hartz e imagine todos los Pueblos del Manantial de agua mineral sin su agua de manantial. Bien el Alpujarras es el equivalente español. Es importante no guardar este área vivo sólo porque nosotros vivimos aquí pero debido a su importancia histórica y cultural, su paisaje bonito. Si nada se hace detener y de hecho invertir el extracto de agua entonces de este área él se volverá un desierto. 

 For aquéllos que dicen la costa necesitan el agua entonces yo pregunto por qué si las personas del Alpujarras deben hacer sin el agua él para que las personas puedan hacer millones de los nuevos edificios, cultivo intensivo o campos de golf. Es hace dos siglos similar a en Inglaterra dónde el sudor de los Molinos Norteños pavimentó las calles de Londres con oro. Ellos también deben recordar a ese turistas de la playa-el término largo y corto - va a dónde es más barato y muchos de ellos ya van a otro locations.If las áreas costeras quieren más agua entonces la lágrima abajo el plástico, rasgue a los pozos de agujero de taladro profundos, are a los campos de golf, destruya el sistema del rociador que el agua los acres de céspedes, detenga el nuevo urbanisacions y excave todas las figuras ilegales. Si ellos hicieran esto que ellos no necesitarían seguir violando el Alpujarras. Si ellos no hacen, entonces tenga cuidado, ellos pueden estar viniendo a usted próximo, porque una balsa extra no será bastante y ellos exigirán más balas y ellos empezarán el agua de la toma de los otros ríos como el Río Chico por Berchules y entonces el río principal estará completamente seco de sobre Cadiar al mar. 

Nosotros pensamos que nosotros estamos ganando el argumento moral y nosotros hemos manejado tardar edificio de una nueva balsa durante un año. 

The past year has seen a fight between those in charge of  water supply on the one hand and the people and villages on the south facing slopes of the Sierra Nevada and two farms on top of the Contraviesa including the location of this observatory. 

The majority of the water for the area comes from the snow melt from the Sierra Nevada, which flows into various rivers, provides the water for the numerous springs and maintains the water table. Surveys have been carried out that the natural amount of water available has reduced over the past twenty years.

The Historical Infrastructure.  

Possibly started by the Romans and definitely expanded by the Moors, a system of controlled water channels where built to take water from the rivers and springs to all parts of the Alpujarra Valley. These channels were constructed in a manner that ensured that not only the destinations of the channels received there due amount but that a small amount of water leaked to supply water the local vegetation. Every one had a just share of the water. 

The Changes. 

There are a number of things that have been happening over the past ten or so years that reduces the amount of water available for the historic infrastructure these have lead to rivers and springs drying out and altering the level of the water tables. These include large-scale development, inappropriate business, intensive agriculture (the Plastic) and the replacement, in part, of the original channels by concrete and tubes. 

Causes & Effects. 

-         Lanjaron - A commercial company is extracting substantial amounts of water for both its sales and for cleaning. So much water has been taken that the company no longer sells Spring Water but River water!!  The effect on the area is terrible and in areas the Rio Trevelez runs dry. 

-         Current Balsa Contraviesa – A number of controlled channels run off the Rio Trevelez. The highest of these – therefore it has the first call on the water – takes water to Casteras.  This channel, as well as supplying water to the village and local farms also supplies water – by gravity – to the large balsa on top of the Contraviesa. This provides water not only to the original buildings of the Mediterranean facing villages but also to the vast number of new builds and urbanisations. As I have mentioned the channel has first call on the river water, this leads to the other channels not receiving the water they need. These channels flow to many villages and farms and they are being seriously effected and I will expand on this further below. Should the second balsa be built then this will aggravate the problem.

-         Channels – A lot of channels have been re-laid using concrete and tubes. This is supposed to be more efficient but this has caused farm to lose access to water, soil erosion, trees and vegetation dying and wild life devastated.

-      Water Table – Less water is getting down to the valley and the main river has less water in it every year this will mean that the water table is getting lower each year. Normally the clay soil in this area stops the valley bottom and other area from completely drying out but I believe that this clay soil is now starting to dry out its self and crack there for more water is being lost.

For those who come from the UK then equate the Alpujarras with the Lake District and imagine Lake Windermere empty of water or for those from Germany equate it with the Hartz Mountains and imagine all the Spa Towns without their spring water.  Well the Alpujarras is the Spanish equivalent. It is important to keep this area alive not just because we live here but because of its historical and cultural importance, its beautiful landscape. If nothing is done to halt and indeed reverse the extraction of water from this area then it will become a desert.

 For those who say the coast needs the water then I ask why should the people of the Alpujarras do without water itself so that  people can make millions from the new buildings, intensive farming or golf courses. It is similar to two centuries ago in England where the sweat of the Northern Mills paved the streets of London with gold. They should also remember that beach tourists – long and short term - go to where it is cheapest and many of them are already going to other locations.

If the coastal areas want more water then tear down the plastic, rip up the deep bore hole wells, plough up the golf courses, destroy the sprinkler system which water the acres of lawns, stop new urbanisations and bulldoze all the illegal builds. If they did this they would not need to keep on raping the Alpujarras. If they do not, then watch out, they may be coming to you next, because one extra balsa will not be enough and they will demand more balas and they will start taking water from the other rivers such as the Rio Chico by Berchules and then the main river will be completely dry from above Cadiar to the sea.

We think we are winning the moral argument and we have managed to delay building of a new balsa for a year. 

Ser agregado a.

Esta sección cubrirá dos tipos de problemas ambientales. Contaminación ligera y el edificio de los depósitos del agua de la escala grande (lagos hechos hombre). En esta localización entran juntos. Mientras que más gente se traslada a la costa ella necesita más agua abajo allí. Los depósitos del agua se acumulan en las montañas y el acto como almacenes de calor enormes durante el día. En la noche emiten el calor y efectúan las condiciones que ven. Más agua provista a la costa significa más edificios y más contaminación ligera que conducen a más agua que es requerida. Esto podría en el estabilidad geológico más largo efecto del término del área como la tierra se seca y contrae.

To be added to.

This section will cover two types of environmental problems. Light Pollution and the building of large scale water deposits (man made lakes). In this location they go together. As more people move to the coast they need more water down there. The water deposits are built up in the mountains and act as huge heat stores during the day. At night they give off the heat and effect the seeing conditions. The more water supplied to the coast means more buildings and more light pollution leading to more water being required. This could in the longer term effect the area's geological stability as the land dries and contracts.