canvi climàtic
Climate change, critical level
Global warming has not stopped since the industrial revolution and in the Quèquicom we are also witnesses. In 2006 we dedicated a report to climate change. In 2019, thirteen years later, we made an update. We will see how has evolved the CO2 in the atmosphere, the temperature of the sea in Estartit, the fish […]
The swing of the beaches
In January 2017 the Catalan coast suffered an exceptional eastern storm, with waves up to 7 meters high, eroding entire beaches, and damaging rides, buildings and structures such as the oil pier of Badalona. The program analyzes the coastal dynamics and finds out if this destructive force is a threat to the coast. The following […]
The butterfly effect
The weather in Catalonia depends on the atmospheric circulation in the middle of the North Atlantic, thousands of kilometers away. Any slight change in the initial conditions there will trigger a completely different result. This behavior, characteristic of chaotic systems, is known as the butterfly effect and is responsible for the unpredictablility of weather in […]
Evolution, after Darwin’s footsteps
Charles Darwin proposed natural selection as the mechanism of evolution, inspired by the finches of the Galapagos islands, fossils of Patagonia, or domestic pigeons. In Catalonia can be found completely equivalent examples: Pyrenean cave beetles, rodent fossils, or a new breed of mini-pigs intended for biomedical research.
Bees: a shared business in danger
Humans have a shared business with bees. We take care of, and they, in turn, produce honey, pollen, wax, propolis and royal jelly. Also pollinate our crops and flowers allow us to obtain the fruits. 40 years ago a hive gave 20 kg of honey per year and today gives only 15 kg. This is […]
Profiting the sun
One of the alternative energy models to hydrocarbons is solar energy, on two fronts: photovoltaic and thermal. Solar panels are still relatively expensive. In large photovoltaic plants are tested other technologies to reduce costs, such as the so-called solar panels of concentration. Joan Ignasi Rosell, University of Lleida, explains what they are. 130 school children […]
The greenhouse effect and climate change
In “Quèquicom”, prominent experts explain clearly what are the main evidence of climate change, why the planet is heated, what say predictions and what can be done to combat it.
