The Boston attack was an act that was sent to the people even when their is security we can and on the colonist
Racial segregation is the systemic separation of people into racial or other ethnic groups in daily life. Segregation can involve spatial separation of the races, and mandatory use of different institutions, such as schools and hospitals by people of different races.
Well if you talking about solar energy sustainability
Bad
1, Pricing
2.Dangerous (building material wise)
Good
1. Better Ecosystem
2.it will help with our unstainable energy
http://www.foei.org/good-energy-bad-energy