They are made a month earlier than 40 years ago

Has agriculture changed as a result of global warming

Undoubtedly. Changes are already palpable. One of the most notable effects of climate change, it is the timing of the harvest. They are made a month earlier than 40 years ago. This is particularly visible in the Côtes du Rhône. With the multiplication of episodes of drought and natural disasters, agriculture is undoubtedly called to live in a much more unstable environment. As infestations is accelerating with the multiplication of travel.

How scientists consider changes within twenty to thirty years

If temperatures rise 1 to 3 degrees by 2030 to 2050, yields should not much change at the global level, as the negative impact of the drought is mitigated, if not cancelled by fertilization and the increase in CO2. That is to say that plants are more efficient in their ability to transform the Sun. Of course, there are always uncertainties, but the most likely hypothesis is that a gain of 1 to 3 degrees would have little effect on the horizon. On the other hand, if the temperature increases more than that, yields may decline.

Will the scenario be the same everywhere in the world

Not, of course. The average effect will be highly variable depending on the regions of the world. It is rather positive in developed and emerging countries from Asia. It is rather negative in Asia and Africa. However, it is precisely in these two large parts of the world population will increase the most and that food is less abundant.

This means that need to accelerate trade and that it therefore violates the wishes of environmentalists to reduce the carbon footprint of products...

Absolutely, the exchanges will accelerate and they will do so according to the current currents. The issue of regulating the flow will arise more and more acute. But the most important issue to resolve by 2030, it is the increase of the instability of the environment.

In these circumstances, the volatility of raw material prices therefore risks further increase

Yes, our European agriculture and the agriculture of the South must be prepared to live in increasingly changing global conditions.

Is there nothing to do

It needs to develop our knowledge of the emissions and carbon sinks, the role of carbon storage and forest soils in this area, to be able to refine our projections. The biggest problem of agriculture is linked to the production of methane, which contributes to the greenhouse effect. In Europe and America, they are the animals who are responsible for. On the other hand, are the rice. In addition, more on déforeste, more on increasing carbon dioxide emissions. All use of the soil changes have an impact on CO2 emissions, but here again we must improve our knowledge.

When we began to worry about CO2 emissions

It has become a real concern in the riots of hunger in 2007. The trial of biofuels began, on the theme of the grabbing of land to feed the men, while many do not eat their hunger. It is also bringing the speech hostile farming developed by some, as Paul Mc Cartney, the former of the Beatles.

The criminalisation of meat in diets is not really new. It is a sea, not

What is new, it is the cause of livestock in the occupation of the soil. There is a theory that animals transform not all calories given to them as cereals. Would it not better reduce livestock to preserve those lost resources 9 Times more inputs needed to farming for 1 calorie with plants. However one should not forget that cows give milk and that they are also the best way to make fertilizer everywhere and to maintain the soil there where tractors are non-existent. In some areas, it is not possible to grow anything other than grass and, to date, the best way to maintain the grass, cows.

How to reconcile the positions of the animal farming lobbies and that of farmers

While working on the composition of the feed. The animals emit more or less methane depending on the composition of their food. How to adapt to external events How to adapt agriculture How to adapt forest to climate fluctuations Solutions exist, such as, inter alia, accelerate the rotation of crops for better withstand the lack of water, or even select varieties and more resistant species.

This is likely not to have a negative impact on the environment

Long sought to change the settings for best results. Today, it tries instead to do as little as possible and to adapt the practices. Result: of agriculture is diverse and better adapted to local realities.

And GMOs in all that

One of the major problems of the agrochemical industry is the control of genes resistant to water stress and extreme temperatures. It is much more difficult to develop such plants as herbicide-resistant GMOs. And it is far from complete.