The correct opposites for the words "hot" (line 1) and "wasteful" (line 27...

Green is the hot topic these days, and the concept
is having an impact on the way people think about
datacenters. Companies around the world are
announcing ways to save energy and reduce costs by
5 buying new hardware and services. Yet, there is little
guidance on how you can take action to control energy
costs. In the past, electricity has been treated as an
overhead expense, like the cost of space. But with rising
power costs and issues regarding reliability, supply, and
10 capacity, electricity requires its own specific strategy.
Projects regarding performance optimization and
cost reduction are a part of everyday best practices