ASX-listed ag player Alterra, says that its investment in and association with carbon credit forestry business, Carbon Conscious, has been generating solid income streams that are set to continue into the future on the back of long term tree planting and management contracts with energy titans, BP and Origin. Alterra took over $1.1m off the table at Carbon Conscious last year by way of dividends, management fees, interest and a $400k early loan repayment.