A new report released on Wednesday by the University of California, Berkeley, found that there are about 15 million hectares of green grasslands on Earth, and that the number is growing rapidly.

The findings are based on a new report that looked at vegetation density in a number of grassland species across the globe.

The report, titled “The Greenness of Grassland” and released by the International Grassland Network, is based on data from more than 10,000 different species.

It is the largest study of vegetation density ever published in nature.

The researchers say that the vast majority of the vegetation is located in tropical regions, such as South America, the Middle East and Asia.

However, they say there are some areas in Europe, the United States and parts of Africa with more dense vegetation than others.

“Many of the new grasslands are large, with several hectares or more,” the authors of the report write.

“In addition, grassland landscapes are increasingly being identified as green areas, and the new vegetation in some places has attracted the attention of environmental stewards who are looking for ways to manage it for their conservation and use.”

The report was published in the journal Nature Plants.

The authors say the findings are important for the future conservation of grasslands, and they urge governments to prioritize these habitats as areas that can be used for agriculture, forestry and wildlife management.

In the United Kingdom, for example, the study found that more than 40% of the green grass land is located within a 30-kilometre radius around the city of London.

In Africa, the report found that grasslands account for about 15% of vegetation on the continent.

In Asia, grasslands represent nearly 10% of forest cover, and are found mostly in the East and Southeast Asian regions.

The study says that green areas are increasingly seen as green spaces because they are more dense, have more trees and plants, and require less water to grow.

“It’s a pretty significant change,” said the report’s lead author, Peter De Jong.

“But what we are finding is that there is still a lot of confusion about how to manage these new grassland areas, especially in developing countries, where we don’t have a lot to work with.”

De Jong and his team looked at the vegetation density of more than 100 different grassland plant species in five continents, and also compared them to a number similar grasslands found on Earth in the last 200 years.

The scientists found that while grasslands in tropical areas have densities that are much higher than those found in temperate and subtropical regions, those densities are changing.

The new grasses were also found to be growing faster, with densities in some areas rising to more than a meter per decade.

The new vegetation density also appears to be changing in areas where there are more arable land, which tend to be warmer, more wetter areas.

De Jong said that some of the areas where grasslands have increased densities have also been experiencing more extreme weather events such as drought and heat waves.

For example, grasses are showing up in the Amazon rainforest, in some cases more than 200 kilometres away from the nearest Amazon rain forest.

De Jung said that grasses in that rainforest are increasingly found in wetter locations, while grasses from other areas are more abundant.

“These changes could have implications for how we manage these grasslands,” he said.

“They could have a big impact on how we can maintain ecosystems and species.

We need to think about how these new vegetation can be managed.”

De Jung said the findings also indicate that a number other vegetation types are also expanding in grasslands.

For instance, the authors say that a group of grasses growing in Europe is expanding from the Sahara to the Mediterranean Sea, and is growing faster than the grasses found in other parts of the world.

While the researchers say this could have major environmental implications, the team points out that these new species may have an even bigger impact on the environment, especially as they are already causing more problems than they are solving.

“They may be disrupting native ecosystems and changing their way of life,” De Jong added.

“So they have to be managed carefully.”