PLOS ONE: Data Sharing by Scientists: Practices and Perceptions. nb: Table 12 shows reasons cited for not sharing data, no. 1 by large margin is lack of time. User jmdugan, in the Reddit Science subreddit, 21 Mar 2014
Data Sharing by Scientists: Practices and Perceptions User dbcalo, in the Environmental Science subreddit, 05 Jul 2011
Environmental and atmospheric scientists turn out to be at least as willing to share data as scientists in other disciplines User silence7, in the Information about the world's climate subreddit, 04 Jul 2011