What can we believe when facts are left out?

What can we believe when facts are left out?

Whatever we are writing or talking about, if we leave out important facts, what does that do to our credibility? How can people believe anything we say or write when we do that?

Case in point.  Today I read an article in the Washington Post about a warm February.  Interesting.  You can read it here:  https://www.washingtonpost.com/local/ive-never-seen-this-before-our-warm-february-feels-fabulous-and-frightening-all-at-once/2017/02/23/1481f25e-f94b-11e6-be05-1a3817ac21a5_story.html?utm_term=.cd2afb70633b

Now you might know about some VERY important facts that the writer left out.  Check it here:  https://www.nasa.gov/topics/earth/features/earth20121112.html

Also, you might want to read about the climate change on Mars.  See it here: http://news.nationalgeographic.com/news/2007/02/070228-mars-warming.html

So, my point is not to debate climate change on earth, but to point out that when someone leaves out very important facts, I question the article.

Was the omission done on purpose, or just "overlooked"?  Either way, how can you believe the report?

Fake news?  I'd be interested in your comments.