Another option is to search individual databases. Databases may be multi-disciplinary, covering many topics, or they may be subject specific, covering only one topic.
Here are some examples to consider using.
Habitat destruction & fragmentation
Combine keywords (using AND):
oil spills AND water
forests AND sustainability
deforestation AND (Amazon OR Brazil)
The following two databases are "best bets" to get started on your research on the environment and climate change.
Opposing Viewpoints is a great place to get started on research. It presents articles and other information that debate the pros and cons of current and controversial topics. Browse a topic list or search using keywords.
Global Issues in Context presents topics from a non-U.S. perspective. Designed to support global awareness, Global Issues In Context ties together a wealth of authoritative content that empowers students to critically analyze and understand the most important issues of the modern world.