the global average because it destroys vegetation, according to the head of the country's land affairs organization, out of 18 million hectares of arable land only it has 5 million hectares of fertile soil and it must be preserved to save the life of the country's soil from this crisis experts in different fields of agriculture have solutions. irrigation is one of these solutions that reduces soil erosion up to 9 tons per hectare. by managing the flow of water by infiltrating the ground by reducing the speed of the water, we can reduce the issue of soil erosion. out of these 16 half tons of erosion that we have in the country, about 10 11 tons are related to water erosion. implementation of watershed structures can be 50% of this. reduce 11 tons , if we can't have watershed management , we have a watershed, with a flood that occurs, we will lose the huge resources of our soil and a another solution is to plant plants, perennial plants such as alfalfa plants, which cover the soil permanently , do not allow erosion in the soil, and oil seed plants, such as safflowers, which have deep roots , improve

now, if they are inside the so-called outside the boundaries of the cities, finally , the land affairs organization will proceed with the transfer of land to them, but usually, because it is not economical for small units, this action does not happen through your presence through the small unit , but the large units. if the industry is working they want to invest in the country and we can't provide these services to them , they settle outside the towns, well, one of the debates that arise now is the issue of pollution. the senses that we are involved in these days in big cities and in tehran. industrial towns, some of them have become within the boundaries of cities over time. how many towns do we have now that are somehow less than the distance that the law says should be in relation to big cities and big cities? look , now i have statistics on how many of our cities are due to the increase in prohibitions the cities are close to the boundaries of the towns, because when we founded the towns, these settlements were never within the boundaries of the cities, they were outside the boundaries of the

announcement, now if it is inside the so-called off-limits in the case of cities, finally , the land affairs organization takes action on the transfer of land to them, but usually, because it is not economical for small units, this action does not happen through your presence through small units . the country can do it and we can't do it either we should offer them services , they will settle outside the cities. well, one of the debates that arise now is the issue of air pollution that we are involved in these days in big cities and industrial towns in tehran . now, how many towns do we have like this, which are somehow less than the distance that the law says to be in relation to the big city, big cities and big cities ? the sanctum of the cities to the sanctity of the towns near you because we when we established the town, these towns were never within the boundaries of the cities, they were outside the boundaries of the cities, but because of the developments that took place in the cities and every increase, yes, it has caused that some of our settlements are so-called close to the boundaries of the c

land that since 1888 is supposed to be theirs. even though the veterans affairs department has leased it to a number of other organizations. nick watt reports on the ruling that allows the veterans' lawsuit to move forward. >> reporter: this is sprawling va campus in west los angeles was once home to 4,000 veterans. the land was given to vets way back in 1888 but now, many building lie dilapidated, unused, while around 4,000 veterans are homeless in l.a. there is a va hospital here, but also ucla's beautiful baseball field and the brentwood schools sports facilities. a federal judge says he wants thousands of veterans experiencing homelessness to live here once more and fast. and he wants the va to quit leasing some of the land. >> i think all of us are losing patience. this has been a problem for decades. >> reporter: after cnn shining a light on mismanagement -- >> for years i believe it was stolen -- >> reporter: 14 veterans filed suit demanding more housing here for needy vets, better access to the care they need and an end to the leases for the likes of brentwood school. the government filed motions to dismiss. this w