Full Idea
The cause of the particular change K was such particular change C as alone occurred in the immediate environment of K immediately before.
Gist of Idea
A cause is a change which occurs close to the effect and just before it
Source
Curt Ducasse (Nature and Observability of Causal Relations [1926], §3)
Book Reference
'Causation', ed/tr. Sosa,E. /Tooley,M. [OUP 1993], p.127
A Reaction
The obvious immediately difficulty would be overdetermination, as when it rains while I am watering my garden. The other problem would coincidence, as when I clap my hands just before a bomb goes off.