Pesticides: a vicious circle.

The indiscriminate use of pesticides sets off a vicious circle: 

• natural predators are destroyed 
• emergence of pests resistant to chemicals 
• without predators, pests increase 
• new, more powerful pesticides are created 
• more predators are destroyed 
• emergence of new, more resistant strains 
• without predators, crop pests increase dramatically 
• a new pesticide is put on the market
• ...and the spiral goes on... 

(Thanks to Lorenzo S. for helping me writing this post)

The dangers of soluble fertilizers.

Chemical soluble fertilizers are manufactured in liquid, powdery or granular forms. 

In the last 50 years they have been widely used to meet the farmers' requirements for productivity. As a matter of fact, nitrogen, phosphorus and potassium fertilizers don't only improve plant growth but dramatically increase crop yields. If fertilizers, adequately used, are good for plant development, they're not so for soil life. Some potassium fertilizers are lethal to earthworms so, as time goes by, the soil loses its fertility. Moreover, too much potassium makes the plants walls thin and too much nitrogen causes a watery growth. Therefore, the plants become more susceptible to pests and diseases. 

Soluble fertilizers move in three different directions: downwards, sidewards and out of the farm boundaries. 

The downward movement is harmful, as fertilizers go down to the deepest layers and pollute the water tables. 

The sideward movement is also dangerous, as fertilizers reach rivers and waterways, causing the growth of water weeds and algae: the consequence is that insects and fish die. 

Fertilizers which go out of the farms can be found inside the vegetables in our diet, particularly in leafy vegetables. 

However, they shouldn't be confused with chemical pesticides and fungicides, which are highly polluting and have devastating effects on human health and the environment. 

(Thanks to Lorenzo S. for helping me writing this post)

About sustainability... ORGANIC FARMING.

The common definition of organic farming is "farming without chemicals". 
As a matter of fact, all living or dead things are made up of chemical compounds. Therefore, organic farming does use chemicals, though naturally derived, in plant protection, fertilizing and livestock husbandry. 
It is a system which tries to avoid the routine use of chemicals and to exploit natural renewable resources. 

The principles of organic farming are: 
- work with natural systems rather than trying to dominate them;
- to encourage and enhance biological cycles within the farming system involving microorganisms, soil flora and fauna, plants and animals;
- to maintain and increase the long term fertility of soils: 
- to use, as far as possible, renewable resources;
- to give all livestock conditions of life that allow them to perform all aspects of their innate behaviour; 
- to avoid all forms of pollutions;
- to maintain the generic diversity of the agricultural system. 

It is the duty of humanity to fix the mess we've made and everyone have to do it in its own sector, beginning with agriculture. 

(Thanks to Lorenzo S. for helping me writing this post)

Help things change...BEE the solution!

One-third of the food we eat depends on bees, bumblebees and other pollinators. Today, they are in serious danger. 
Yes, as always it is our fault. The agrochemical multinationals are flowing into the system of industrial agriculture increasing amounts of chemicals which threaten bees and our safety. 

Greenpeace is at the forefront in this battle for the safeguarding of bees. 
Pollen collected by bees was tested and the result is unambiguous : over two-thirds were contaminated by pesticides (up to 17 different substances for each sample). 
Lots of flowers and plants sold in garden centers, supermarkets and DIY stores contain pestcides that are lethal for bees (also neonicotinoids, which are partially forbidden in Europe). 

We can change all this. 
The solution has a name, and it is ecological agriculture, able to produce healthy food for everyone without damaging the planet and the bees. Lots of farmers in Europe are already doing it. 

People from all around the world are organizing activities to inform and mobilize others on the importance of bees,
Join the movement by signing the petition of Greenpeace to save the bees : http://sos-bees.org/#petition/?GPI_action .