Gas pipelines have been around since the 1850s, but they have only been around for a few decades.
But now the United States is on track to become the world leader in the construction of pipelines, with more than 1,200 proposed and under construction in the US.
The United States has had more pipelines under construction than any other country in the world, according to a report by the US Energy Information Administration (EIA), and its expansion has been on the rise in recent years.
The country’s oil and gas production has doubled in the past decade, and it has surpassed China to become a leader in global oil supply, with 1.8 million barrels per day (bpd) of crude and 1.4 million bpd of natural gas.
As a result, the US has a huge number of pipelines under its belt, with the number expected to grow further in coming years.
There are about 1,300 proposed and on-going gas pipelines in the United State, with over 300 under construction, according the EIA.
In the US, the most active pipelines are those in the Gulf of Mexico, which is currently undergoing a boom in drilling activity.
This is partly due to the fact that the Gulf has been hit hard by a massive oil spill from the Deepwater Horizon oil rig off the Louisiana coast in 2010.
Another important factor in the development of pipelines is the increased demand for natural gas from consumers and the increasing reliance on renewable energy sources.
Natural gas is now the most abundant fuel in the country, and is also used in refrigerators and appliances.
But gas has also been on a boom, thanks to its low cost, and has become the primary fuel for the electric grid.
In 2015, there were 2.5 billion cubic feet (bcf) of natural-gas produced in the U.S., more than the number of coal-fired power plants combined.
The number of electric-power plants that were under construction increased by about 30% from 2012 to 2015, according a report released by the Department of Energy’s (DOE) Office of Energy Efficiency and Renewable Energy.
As such, the pipeline infrastructure in the region has been getting bigger.
The state of California has a number of proposed and completed pipelines.
The largest is the proposed Gateway Pipeline, which would carry natural gas across California to the Texas Gulf Coast, which could help fuel the growth of a growing electric grid and drive down costs for electric vehicles.
Another proposed pipeline is the Dakota Access Pipeline, but that pipeline would run through North Dakota and Saskatchewan, and would be connected to the Canadian market.
Another pipeline that has attracted a lot of attention is the Northern Gateway Pipeline in the Arctic, which will bring oil from the Bakken shale region in North Dakota to the port of Churchill, British Columbia.
There, the oil would be piped to Canada via a pipeline through Quebec.
There is a pipeline that goes from Pennsylvania to the Atlantic coast of the U, and a pipeline from the Gulf Coast of Texas to the eastern seaboard of the United Kingdom.
The most recently announced pipeline is an existing pipeline, the North American Pipeline, between Oklahoma and Texas.
This pipeline is proposed to go from the Oklahoma City-McAllen area to the Gulf coast of Texas, where it will carry crude oil from Texas and Louisiana to the Oklahoma coast, where the oil will be pipened to New York and then to the UK.
There have been a number other pipelines proposed in the pipeline sector, but none have actually gone ahead, according it the pipeline operators.
This means that the infrastructure is not yet ready for the kind of development that would occur if a pipeline is constructed, according James Brown, a pipeline engineer at the US Environmental Protection Agency (EPA) in Washington, DC.
“That’s one of the biggest challenges right now is that there are very few infrastructure projects that have gone through a full design review,” he said.
The pipelines that have actually been built, however, have been able to reduce the amount of greenhouse gases emitted from their construction.
In fact, Brown noted that the most recent pipeline built by Chevron in Texas, the $3.5-billion Keystone XL Pipeline, was built using about 50% less energy than the most recently proposed pipeline.
“The Keystone XL is a huge deal for us because it allows us to move our pipeline to other parts of the world,” he explained.
The pipeline would be able to carry up to 5 million barrels of oil per day, with an estimated carbon emissions reduction of 3.6 million tonnes of CO2 per year.
In order to reduce greenhouse gas emissions, Brown explained that pipelines would need to be constructed and maintained in a safe and environmentally sound way, and this is a major challenge that pipelines will face in the coming years as the world becomes more energy-independent.
“It’s a big challenge to get this pipeline built,” he added.
Another major problem with pipelines is that