Oceanography

1. Brainstorm keywords and synonyms

Consider common and specialized terminology. Examples...

• Oceans and climate change
  • Ocean acidification
  • "sea level change"
  • "ocean surface temperature" or "ocean warming"
• Cryosphere
  • "polar ice"
  • glaciers
  • permafrost
• Greenhouse gases
  • CO2
  • biogeochemicals
• Paleoclimate
  • ice ages

Use AND to focus your search on a smaller result set

Examples... 

•  "greenhouse gases" AND human influence
•  CO2  AND "ocean acidification" AND coral reefs
•  "sea level change" AND risks

3. Use OR to link synonyms and gain a larger result set

Examples... 

• oceans AND [temperature OR warming]
• oceans AND ["climate change" OR "global warming"]

4. Put quotations around your terms for exact searches

Examples...

• "sea level change"
• "greenhouse gases"
• "global water cycle"