Street trees must be planted at new buildings and at major enlargement projects. Tree Services If you know of a tree that needs our attention, please report it to our forestry services. All plantings are within the City-owned public right-of-way. Learn more about our tree planting process Trees are planted during our planting seasons:
Researchers drill historic hole in atlantic ocean floor April 28, Researchers from the Integrated Ocean Drilling Program IODP have drilled into sections of the Earth's crust for the first time ever, and their findings could provide new insights about how Earth was formed.
Scientists penetrate fossil magma chamber beneath intact ocean crust April 20, Pacific Ocean, approximately km west of Costa Rica—An international team of scientists aboard the research drilling ship JOIDES Resolution has—for the first time—recovered black rocks known as gabbros from intact January 16, A Japanese ship is setting sail on a mission to reveal the origin of life on earth.
The scientific drilling expedition's first target is located in water depths of 2, Scientists' Drill Hits Magma: Their drill ran into molten rock at a depth of 6, feet. Geologists get unique and unexpected opportunity to study magma February 16, Geologists drilling an exploratory geothermal well in in the Krafla volcano in Iceland encountered a problem they were simply unprepared for: Recommended for you Study shows regions increasingly suffer hot, dry conditions at the same time November 28, A new study from Stanford University suggests that the kind of hot, dry conditions that can shrink crop yields, destabilize food prices and lay the groundwork for devastating wildfires are increasingly striking multiple regions Earth's polar regions communicate via oceanic 'postcards,' atmospheric 'text messages' November 28, Scientists have documented a two-part climatic connection between the North Atlantic Ocean and Antarctica, a fast atmospheric channel and a much slower oceanic one, that caused rapid changes in climate during the last ice Fossil algae reveal million years of climate change November 28, Earth scientists are able to travel far back in time to reconstruct the geological past and paleoclimate to make better predictions about future climate conditions.
Using the organic molecule phytane, a debris product of Fires fueled spread of grasslands on ancient Earth November 28, Ancient wildfires played a crucial role in the formation and spread of grasslands like those that now cover large parts of the Earth, according to scientists at Penn State and the Smithsonian National Museum of Natural History.
Growing pile of human and animal waste harbors threats, opportunities November 28, As demand for meat and dairy products increases across the world, much attention has landed on how livestock impact the environment, from land usage to greenhouse gas emissions.
Can removing carbon from the atmosphere save us from climate catastrophe? In its recent report, it laid out four means of achieving thisSupported.
In the context of Apache HBase, /supported/ means that HBase is designed to work in the way described, and deviation from the defined behavior or functionality should be reported as a bug.
CONSTRUCT YEARBOOK / Concrete Today 5 PAV concretes are air-entrained and the correct distribution of bubbles to give the concrete enhanced freeze-thaw resistance. Evaluate the Sidewalk and the Tree The best solution to the problem of heaving walks occurs when the trees are installed.
When a tree root has grown near the surface and has lifted the sidewalk, the city administrators must begin to collect information about the tree and the sidewalk.
Acid soils and alkaline soils See diagram Nitrogen cycle Soil pH is a measure of the acidity of the soil, on a scale from 1 to 14, the pH scale. A neutral substance such as pure water has a value of 7. Alterations  and Historic Preservation  General [(1)] ADAAG sets minimum requirements for accessibility in alterations.
New construction technical criteria are applied to the each element or space altered where technically feasible. Lawn Shop. Grass Seed. Hard Wearing Grass; High Quality Lawn Lawn UK is known for top quality premium lawn seed. These finest quality grass seed mixtures are designed to .