El Tajo. Historia de un río ignorado

Love Letter to the Earth is Thich Nhat Hanh's passionate appeal for ecological mindfulness and the strengthening of our relationship to the Earth. While many experts point to the enormous complexity in addressing issues ranging from the destruction of ecosystems to the loss of millions of species, Thich Nhat Hanh identifies one key issue as having the potential to create a tipping point. He believes that we need to move beyond the concept of the "environment," as it leads people to experience themselves and Earth as two separate entities and to see the planet only in terms of what it can do...

En esta obra, de investigación y observación de aves en la Universidad de La Salle, se destacan las diferentes especies avistadas en la sede norte de la institución; se analizan cuarenta y cinco especies, entre ellas, rapaces, migratorias, el colibrí abeja (Chaetocercus mulsant), que es una de las aves más pequeñas del mundo; así como nativas y endémicas, entre otras.

Cuando la vieja más vieja del mundo despierta y sale de su cueva, le causa risa la cara que la gente pone al verla tan despeinada. Su risa se transforma en llanto, cuyas lágrimas pronto terminan por inundar campos y pueblos enteros. En las solapas de este libro se entrega vocabulario sobre los tipos de precipitaciones y se explica el ciclo del agua y su importancia.

In recent years, due to expanding populations and industries, regulatory authorities have imposed tighter discharge limits on nutrients from wastewater treatment facilities to avoid eutrophication in water streams. Common methods, such as metal salt precipitation, are being used to lower phosphorus concentrations which are a main contribution. However, alternate phosphorus removal techniques, such as phosphorus crystallisation, can provide further benefits. Precipitated solid can be utilised as a marketable fertiliser. Principles of magnesium and ammonia phosphate precipitation, working with...