<div dir="ltr"><div dir="ltr">I've also seen reference to investing in mangroves.<div><br></div><div>Can't see the particular reference just now, but this also discusses the concept further</div><div> <a href="http://awsassets.panda.org/downloads/wwf_iucn_mangroves_investment_effectiveness_guide.pdf">http://awsassets.panda.org/downloads/wwf_iucn_mangroves_investment_effectiveness_guide.pdf</a>  </div><div><br></div><div>Possibly another option?</div><div><br clear="all"><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr">Thanks<div><br></div><div>Graeme</div></div></div></div></div></div></div></div></div>