Mojave weighs clean energy, growth and desert conservation
High Desert, Calif. (High Desert News Online) — Joshua trees have lived through thousands of years of droughts, harsh heat, and transformation of the Mojave Desert. The current environmental pressures that Joshua trees face include climate change, renewable energy development, mineral extraction, and urbanization.
For the High Desert, the key issue now becomes achieving the right balance between conservation efforts and development needs. Joshua trees play an integral role in Mojave’s ecosystem and are a significant symbol of the region, while renewable energy, mining, residential and commercial construction can provide employment, power, tax revenues, and economic growth.
It remains unclear which areas can be used for development without ruining the habitat of these unique plants forever.
Range of Joshua trees
The range of Joshua tree covers the Mojave Desert in parts of California, Nevada, Arizona, and Utah. In California, there are millions of western Joshua trees growing in the desert – both within Joshua Tree National Park and beyond, on public and private lands.
Despite looking like a tree, Joshua tree belongs to the genus of yucca plants. These trees’ unusual branch formations represent High Desert communities from Victor Valley and Antelope Valley to Morongo Basin and eastern Mojave Desert.
Joshua Tree National Park preserves one of the largest concentrations of these plants.
The process of the Mojave Desert’s conservation started on Aug. 10, 1936, when President Franklin D. Roosevelt established Joshua Tree National Monument. The land was designated as a wilderness in 1976, and a year later, on Oct. 31, 1994, Joshua Tree National Park became a part of California Desert Protection Act.
Currently, the park includes almost 800,000 acres of Mojave and Colorado deserts.
Joshua trees create an economy for desert
There are clear economic advantages of desert protection.
Joshua Tree National Park has received 2.99 million recreation visitors in 2024. They spent $179 million on food, accommodation, goods, and services in the surrounding communities, creating up to 1,630 jobs and contributing $214 million to local economies, according to the National Park Service.
The money goes to businesses such as hotels, cafes, stores, recreation companies, and others operating around the park.
Recreation in the park has grown significantly in recent years. In 2014, there were 1.59 million visitors in Joshua Tree, while in 2015 and 2021, its number exceeded 2 million and 3 million respectively. The number of annual visitors has remained high in the following years.
The figures above illustrate why Joshua tree conservation means not only environmental challenges but economic concerns as well.
Renewable energy leads to another environmental debate
Besides that, California’s switch to renewable energy sources makes the situation more complicated for desert landscapes.
Utility-scale solar projects benefit from the abundance of sunshine, vast spaces of Mojave, and proximity to the infrastructure needed for electricity transfer.
However, many of these lands host Joshua trees as well.
For instance, the Aratina Solar Center located near Boron in eastern Kern County plans to remove or relocate thousands of Joshua trees. The estimate is around 4,200 trees.
Thus, we see another environmental conflict. On the one hand, solar energy helps reducing the reliance on fossil fuels, on the other hand, it causes habitat destruction.
While supporters praise renewable energy for increasing the electric capacity, creating jobs, bringing revenues, and promoting green energy goals, conservationists note that development projects must target disturbed lands, existing developments, roofs, parking lots, etc. first.
Mining raises a similar environmental concern near Joshua Tree
Another industry causing the controversy is mining.
In 2026, an Australian mining company initiated a rare-earth and precious metals project on 32 square miles of the Pinto Mountains in eastern Mojave, close to the national park border. The Music Valley project attracted attention due to the fact that there are Joshua tree populations and critical habitat of the endangered desert tortoise in the vicinity.
Rare earth elements are becoming increasingly valuable due to their use in the electronics, energy technology, military equipment and other branches of industry.
Therefore, the question for the California desert communities becomes: which location and environmental impact are more preferable when we need to get raw materials for the development of advanced technologies and renewable energy?
Climate may raise a larger threat to the future of Joshua trees
However, besides the direct development of desert territories, there is another problem that threatens Joshua trees.
Scientists have been exploring the potential consequences of temperature rise, prolonged drought, wildfires, changes in rainfall pattern on the future range of the species.
According to the 2025 study published in Ecosphere, under some climate change scenarios, there can be a huge reduction in the habitat of the plant. Under the worst-case emissions scenario, as much as 80% of the current range may become unsuitable for the survival of Joshua trees by 2100. However, there are certain regions that may become climate refuges.
It does not mean that the extinction of the plant may happen in the whole range by that exact time. All projections depend on future emission levels, geography and local factors.
But it clearly implies that at least some of the current habitat can become unfavorable for the species over time.
And Joshua trees have one more disadvantage compared to the other plants. Because of their slow growth, temperature and rainfall patterns change much faster than Joshua trees are capable of migrating.
An ecosystem formed during the Ice Age
Also, the history of Joshua trees dates back to the Ice Age.
Giant ground sloths inhabited the Southwest eating fruit and seeds of the Joshua trees. They dispersed the seeds of Joshua trees across the landscape.
However, giant ground sloths vanished from the region near the end of the Pleistocene epoch 12-13 thousand years ago. Today, Joshua trees are dispersed by rodents, but scientists think that absence of large animals in the region reduces the species’ ability to migrate to suitable habitats when the environmental conditions change.
It becomes a key point when scientists try to understand if Joshua trees are able to migrate to the north or to the higher altitudes to stay in a suitable environment in case of climate change.
Besides Joshua tree woodlands, there are hundreds of other species living in this ecosystem in Joshua Tree National Park: desert tortoises, desert bighorn sheep, reptiles, mammals, insects, and more than 250 bird species.
Thus, disappearance of the large Joshua tree woodlands can have negative consequences for many other animals.
Protection of Joshua trees becomes statewide
Eventually, the increasing concerns about Joshua trees’ problems made the authorities act at the state level.
California adopted the Western Joshua Tree Conservation Act in 2023, introducing the first-ever comprehensive conservation program for the western Joshua tree in the state.
This act does not prohibit all types of development associated with Joshua trees.
Instead, California Department of Fish and Wildlife can issue permits allowing removal of Joshua trees under certain conditions. Developers and property owners may be required to make payments for mitigation or undertake other conservation measures. Relocation requirements may be imposed for projects destroying more than 10 acres of habitat or 75 western Joshua trees.
The state developed Western Joshua Tree Conservation Plan that defines management actions needed to preserve the species in the long run. California’s Department of Fish and Wildlife is expected to submit recommendations concerning the plan to the Fish and Game Commission by Aug. 31, 2026.
Are conservation and development mutually exclusive?
Thus, the solution proposed by California suggests that conservation and development can exist together.
However, it depends on how developers act.
Renewable energy projects can minimize their environmental impact by concentrating construction on previously disturbed lands, avoiding dense or ecologically important Joshua tree woodlands, preserving wildlife corridors and setting aside connected habitats rather than isolated patches.
Planning at the regional level can identify areas of Mojave where renewable energy development will cause the minimum environmental conflicts.
Where avoiding Joshua trees is impossible, mitigation, conservation land purchases and relocation can decrease some negative consequences, but moving mature desert plants cannot compensate the loss of habitat.
The same principle works for housing and commercial construction as well. The High Desert communities need housing, infrastructure, businesses, and jobs, but poor planning of development can fragment habitats and turn large connected ecosystems into small patches.
Tourism in the park and desert faces the same challenge. Joshua Tree National Park and its surroundings bring money to local economies, but at the same time it puts additional pressure on roads, water supply, housing, and resources of desert.
Next chapter of Mojave
The dispute over Joshua trees is likely to persist because it is a part of the bigger problem in the California desert.
Mojave is simultaneously a conservation area, a place to live in, a tourism destination, a renewable energy source, a transport corridor, and a source of raw materials for the modern industry.
There is no chance that the above-mentioned functions of Mojave disappear soon.
The question for the state and local governments is whether the future development decisions will preserve enough habitat for Joshua trees and the local wildlife.
Joshua trees have endured dramatic changes of the environment since the Ice Age. Their future depends not only on their ability to survive in desert but on development decisions of local communities.
