Only after the last tree has been cut down.  Only after the last river has been poisoned.  Only after the last fish has been caught.  Only then will you find that money cannot be eaten.

"When an activity raises threats of harm to human health or the environment, precautionary measures should be taken even if some cause and effect relationships are not fully established scientifically. In this context the proponent of an activity, rather than the public, should bear the burden of proof." - Wingspread Statement of the Precautionary Principle.
Insurance Liabilities

From SGI Canada
Agro Pak
Booklet AP-10

Liability
Comprehensive
Farmer's Liability
A. General Section

Exclusions Applicable to All Insuring Agreements

This insurance does not apply to:

  1. Pollution Liability
    1.  "Bodily injury" or "property damage" arising out of the actual, alleged, potential or threatened spill, discharge, emission, dispersal, seepage, leakage, migration, release or escape of pollutants:
      1. into or upon land, the atmosphere or any water of any description no matter where located or how contained; or
      2. into any watercourse, drainage or sewage system;

    but this exclusion does not apply if such spill, discharge, emission, dispersal, seepage, leakage, migration, release or escape is sudden or accidental.
      

    1. Any loss, cost, or expense arising out of any request, demand or order than any Insured or others test for, monitor, clean up, remove, contain, treat, detoxify, decontaminate, stabilize, remediate or neutralize or in any way respond to, or assess the effect of pollutants unless such loss, cost or expense is consequent upon "bodily injury" or "property damage" covered by this Policy.

    "Pollutants" means any solid, liquid, gaseous or thermal irritant or contaminant, including smoke, odour, vapour, soot, fumes, acids, alkalis, chemicals and waste.  Waste includes material to be recycled, reconditioned or reclaimed.

From Portage Mutual Insurance
AgriPro
Policy Booklet

Section II - Liability Coverage

Exclusions

You are not insured for claims made or actions brought against you for:

  1. (a) bodily injury or property damage arising out of the discharge, dispersal, release or escape of pollutants, into or upon land, the atmosphere or any water of any description no matter where located or how contained, or into any watercourse, drainage or sewage system, but this exclusion does not apply if such discharge, dispersal or release or escape is sudden or accidental.  The word "sudden or accidental" mean an unexpected and unintentional discharge, dispersal or escape which is detected by any person within 120 hours after the commencement of the discharge, dispersal, release or escape:
     
    (b) the cost of removing, nullifying, containing, treating, detoxifying, neutralizing or cleaning up pollutants, except such cost as may be incurred as part of claims not excluded under 18(a) above.
     
    "Pollutant" means any solid, liquid, gaseous or thermal irritant or contaminant, including but not limited to, vapors, soot fumes, acids, alkalis, chemicals and waste.  Waste includes materials to be recycled, reconditioned or reclaimed.