Check the value of an Environmental Variable on Multiple servers

Here's one powershell method for how to check the value of an environment variable on multiple servers;

$computers = @("server1", "server2", "server3");

foreach ($c in $computers)
{
	 Get-WmiObject -ComputerName $c -Class Win32_Environment -Filter "Username = '' AND Name = 'VAR_NAME'";
}

Output will be similar to below...

VariableValue              Name                       UserName
-------------              ----                       --------
SERVER1 VAR\_NAME 
SERVER2 VAR_NAME 
SERVER3 VAR_NAME